Melitoidea

Specimen of Eriopisella, from Moorea Biocode (© 2010).


Belongs within: Amphipoda.
Contains: Hadziidae, Melita, Maera.

The Melitoidea are a group of gammaroid amphipods found mostly in marine and brackish water.

Characters (from Bousfield 1977): Body not carinate or rostrate, toothed on abdomen only (rarely on peraeon); urosome dorsal spine groups weak or lacking; sexual dimorphism strongly expressed in body size, gnathopods, antenna II and peraeopods; antennae II lacking calceoli; antennae strongly developed, I usually much longer than II, peduncular segment II elongate; accessory flagellum prominent (occasionally very reduced or lacking); inferior antennal sinus small or sharply incised; eye (when present) small, rounded, occasionally reniform. Mouthparts basic: mandibular palp slender, weakly armed, occasionally absent, segment 3 not greatly shortened; lower lip with inner lobes variously developed, often strong; maxillae with plates often small, setose apically; outer plate of maxilla I with 11-7 apical spine-teeth; maxilliped plates moderately strong, marginally spinose, palp dactylate. Coxal plates I-IV medium deep to shallow, contiguous, weakly setose; coxae V-VII with posterior lobe not deeper than anterior. Gnathopods I and II subchelate, II much the larger and more powerful (especially in male) and of different form (especially in carpus and propodus); peraeopod III larger than IV, not sexually dimorphi; peraeopods V-VII with bases variously expanded, often sublinear, VII usually longest; pleopods usually well developed, peduncles slender; epimeral plates posteriorly acute. Peduncle of uropod I with baso-facial spine strongly developed; uropod III with rami variably developed, spinose, seldom setose; telson variously bilobed, lobes usually divergent, apices acute, spinose in apical notch. Coxal gills simple, often pedunculate, lacking on peraeon VII; sternal gills absent; brood plates linear, often small, margines few- and short-setose.

<==Melitoidea S86
    |  i. s.: Parapherusa Stebbing 1906 K-SV02, B77
    |           `--*P. crassipes (Haswell 1879) [=Harmonia crassipes] B77
    |--Hadziidae MD01
    |--Carangoliopsis Ledoyer 1970 [Carangoliopsidae] B77
    |    `--*C. spinulosa Ledoyer 1970 B77
    |--Metacrangonyx Chevreux 1909 B77, R86 [incl. Afrocrangonyx Karaman 1981 R86; Metacrangonyctidae MD01]
    |    |--M. longicaudus Ruffo 1954 R86
    |    |--M. longipes Chevreux 1909 R86
    |    |--M. panousei Ruffo 1953 R86
    |    |--M. sinaicus Ruffo 1982 R86
    |    `--M. spinicaudatus Karaman & Pesce 1980 R86
    `--Melitidae S86
         |  i. s.: Allomelita pellucida (Sars 1882) S86
         |         Apoweckelia serrata Stock 1985 S86
         |         Pintaweckelia grandis Stock 1985 S86
         |         Radaweckelia brevicauda Stock 1985 S86
         |         Tagua aporema Lowry & Fenwick 1983 S86
         |         Zhadia subantarctica Lowry & Fenwick 1983 S86
         |         Zombiweckelia parvipalpus Stock 1985 S86
         |         Allotexiweckelia Holsinger 1980 S86
         |           `--A. hirsuta Holsinger 1980 S86
         |         Anchialella Barnard 1979 S86
         |           `--A. vulcanella Barnard 1979 S86
         |         Galapsiellus Barnard 1976 S86
         |           `--G. lelouporum (Monod 1970) S86
         |         Holsingerius Barnard & Karaman 1982 S86
         |           `--H. samacos (Holsinger 1980) S86
         |         Indoniphargus Straškraba 1967 S86
         |           `--*I. indicus (Chilton 1923) B77, S86 [=Niphargus indicus B77]
         |         Madapisella Stock 1980 S86
         |           `--M. madagascariensis (Ledoyer 1968) S86
         |         Nippopisella Stock 1980 S86
         |           `--N. nagatai (Gurjanova 1965) S86
         |         Phreatomelita Ruffo 1979 S86
         |           `--P. paceae Ruffo 1979 S86
         |         Protohadzia Zimmerman & Barnard 1977 S86
         |           `--P. schoenerae (Fox 1973) S86
         |         Texiweckelia Holsinger 1980 S86
         |           `--T. texensis (Holsinger 1973) S86
         |         Texiweckeliopsis Barnard & Karaman 1982 S86
         |           `--T. insolita (Holsinger 1980) S86
         |         Tunisopisa Stock 1980 S86
         |           `--T. seurati (Gauthier 1936) S86
         |         Giniphargus Barnard & Karaman 1979 W86
         |           `--G. pulchellus (Sayce 1900) [=Niphargus pulchellus] W86
         |         Saliweckelia Stock 1977 S86
         |           |--S. emarginata Stock 1977 S86
         |           `--S. holsingeri Stock 1977 S86
         |         Crangoweckelia S86
         |           |--C. mixta Stock 1985 S86
         |           `--C. spinicauda Stock 1985 S86
         |         Bahadzia S86
         |           |--B. latipalpus Stock 1985 S86
         |           |--B. stocki Holsinger 1985 S86
         |           `--B. williamsi Holsinger 1985 S86
         |         Victoriopisa Karaman & Barnard 1979 S86
         |           |--V. atlantica Stock & Platvoet 1981 S86
         |           |--V. australiensis (Chilton 1923) S86
         |           |--V. chilkensis (Chilton 1921) S86
         |           `--V. epistomata (Griffiths 1974) S86
         |         Metahadzia Stock 1977 S86
         |           |--M. adriatica Pesce 1979 S86
         |           |--M. helladis Pesce 1980 S86
         |           |--M. minuta (Ruffo 1947) S86
         |           |--M. pachypoda (Ruffo 1982) S86
         |           `--M. tavaresi (Mateus & Mateus 1972) S86
         |         Pseudoniphargus Chevreux 1901 S86
         |           |--*P. africanus (Chevreux 1901) [=Gammarus africanus] B77
         |           |--P. adriaticus Karaman 1955 S86
         |           |--P. branchiatus Stock 1980 S86
         |           |--P. brevipedunculatus Stock 1980 S86
         |           |--P. elongatus Stock 1980 S86
         |           |--P. longispinum Stock 1980 S86
         |           |--P. macrotelsonis Stock 1980 S86
         |           |--P. mateusorum Stock 1980 S86
         |           `--P. unisexualis Stock 1980 S86
         |         Nedsia Barnard & Williams 1995 FJK08
         |           |--N. douglasi Barnard & Williams 1995 FJK08
         |           `--N. straskraba Bradbury & Williams 1996 FJK08
         |         Norcapensis EHH05
         |--+--Melitoides Gurjanova 1934 B77
         |  |    `--*M. makarovi Gurjanova 1934 B77
         |  |--Gammarella Bate 1857 B77
         |  |    `--*G. fucicola (Leach 1814) [=Pherusa fucicola] B77
         |  |--Netamelita Barnard 1962 B77
         |  |    `--*N. cordata Barnard 1962 B77
         |  |--Rotomelita Barnard 1977 B77
         |  |    |--*R. ana Barnard 1977 B77
         |  |    `--R. lokoa Barnard 1977 S86
         |  |--Paraniphargus Tattersall 1925 B77
         |  |    |--*P. ruttneri Schellenberg 1931 B77, S86
         |  |    `--P. annandalei Tattersall 1925 S86
         |  |--Eriopisa Stebbing 1890 B77
         |  |    |--*E. elongata (Bruzelius 1859) B77
         |  |    |--E. inaequicaudata Ledoyer 1982 S86
         |  |    |--E. incisa McKinney, Kalke & Holland 1978 S86
         |  |    `--E. philippensis (Chilton 1921) S86
         |  |--Psammogammarus Karaman 1955 B77
         |  |    |--*P. coecus Karaman 1955 B77, S86 [incl. Eriopisa peresi Ledoyer 1968 S86]
         |  |    |--P. caesicolus Stock 1980 S86
         |  |    |--P. garthi (Barnard 1952) S86
         |  |    |--P. gracilis (Ruffo & Schiecke 1976) S86
         |  |    |--P. longiramus (Stock & Nijssen 1965) S86
         |  |    `--P. scopulorum Stock 1983 S86
         |  |--Eriopisella Chevreux 1920 B77
         |  |    |--*E. pusilla Chevreux 1920 B77
         |  |    |--E. capensis (Barnard 1916) S86
         |  |    |--E. epimera Griffiths 1974 S86
         |  |    |--E. propagatio Clark Imbach 1967 S86
         |  |    |--E. sechellensis (Chevreux 1901) S86
         |  |    `--E. upolu Barnard 1970 S86
         |  `--Melita B77
         `--+--Bathyceradocus Pirlot 1934 B77
            |    `--*B. stephenseni Pirlot 1934 B77
            |--Ceradocus Costa 1853 B77
            |    |--*C. orchestiipes Costa 1853 B77
            |    `--C. semiserratus (Bate 1862) BD95
            |--Ceradocoides Nicholls 1938 B77
            |    `--*C. chiltoni Nicholls 1938 B77
            |--Ceradocopsis Schellenberg 1926 B77
            |    `--*C. kergueleni Schellenberg 1926 B77
            |--Paraceradocus Stebbing 1899 B77
            |    `--*P. miersii (Pfeffer 1888) [=Megamoera miersii] B77
            |--Metaceradocoides Birstein & Vinogradov 1960 B77
            |    `--*M. vitjazi Birstein & Vinogradov 1960 B77
            |--Maeracunha Stephensen 1949 B77
            |    `--*M. tristanensis Stephensen 1949 B77
            |--Maeropsis Chevreux 1919 B77
            |    `--*M. perrieri Chevreux 1919 B77
            |--Meximaera Barnard 1969 B77
            |    `--*M. diffidentia Barnard 1969 B77
            |--Jerbarnia Croker 1971 B77
            |    `--*J. mecochira Croker 1971 B77
            |--Anelasmopus Oliveira 1953 B77
            |    `--*A. kraui Oliveira 1953 B77
            |--Parelasmopus Stebbing 1888 B77
            |    `--*P. suluensis (Dana 1852) [=Gammarus suluensis] B77
            |--Ifalukia Barnard 1972 B77
            |    `--*I. resaca (Barnard 1965) [=Parelasmopus resacus] B77
            |--Elasmopus Costa 1853 B77
            |    |--*E. rapax Costa 1853 B77
            |    |--E. affinis Della Valle 1893 BD95
            |    |--E. brasiliensis (Dana 1855) BD95
            |    |--E. pectenicrus (Bate 1862) BD95
            |    |--E. pocillimanus (Bate 1862) BD95
            |    `--E. rapax Costa 1853 BD95
            |--Elasmopoides Stebbing 1908 B77
            |    `--*E. chevreuxi Stebbing 1908 B77
            |--Beaudettia Barnard 1965 [Beaudettiidae] B77
            |    `--*B. palmeri Barnard 1965 B77
            |--Cottesloe Barnard 1974 B77
            |    `--*C. berringar Barnard 1974 B77
            |--Nuuana Barnard 1970 B77
            |    `--*N. amikai Barnard 1970 B77
            |--Mallacoota Barnard 1972 B77
            |    `--*M. diemenensis (Haswell 1880) [=Megamoera diemenensis] B77
            |--Maera B77
            `--Quadrivisio Stebbing 1907 B77
                 |--*Q. bengalensis Stebbing 1907 B77
                 |--Q. chevreuxi Gordon 1968 S86
                 `--Q. lutzi (Shoemaker 1933) [=Pseudoceradocus lutzi; incl. Q. occidentalis Stephensen 1933] S86

*Type species of generic name indicated

REFERENCES

[BD95] Bakalem, A. & J.-C. Dauvin. 1995. Inventaire des crustacés amphipodes (Gammaridea, Caprellidea, Hyperiidea) des costes d'Algérie: essai de synthèse. Mésogée 54: 49-62.

[B77] Bousfield, E. L. 1977. A new look at the systematics of gammaroidean amphipods of the world. Crustaceana Suppl. 4: 282-316.

[EHH05] Eberhard, S. M., S. A. Halse & W. F. Humphreys. 2005. Stygofauna in the Pilbara region, north-west Western Australia: a review. Journal of the Royal Society of Western Australia 88 (4): 167-176.

[FJK08] Finston, T. L., M. S. Johnson & B. Knott. 2008. A new genus and species of stygobitic paramelitid amphipod from the Pilbara, Western Australia. Records of the Western Australian Museum 24 (4): 395-410.

[K-SV02] Krapp-Schickel, T., & W. Vader. 2002. Redescription and generic position of Cheirocratella thori Stephensen, 1940 (Amphipoda, Gammaroidea). Sarsia 87: 9-18.

[MD01] Martin, J. W., & G. E. Davis. 2001. An updated classification of the Recent Crustacea. Natural History Museum Los Angeles County, Science Series 39: 1-124.

[R86] Ruffo, S. 1986. Amphipoda: Groupe Metacrangonyx. In Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) (L. Botosaneanu, ed.) pp. 550-552. E. J. Brill / Dr. W. Backhuys: Leiden.

[S86] Stock, J. H. 1986. Amphipoda: Melitid grouping (Melitidae sensu Bousfield, 1973, emend.) In Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) (L. Botosaneanu, ed.) pp. 504-513. E. J. Brill / Dr. W. Backhuys: Leiden.

[W86] Williams, W. D. 1986. Amphipoda on land-masses derived from Gondwana. In Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) (L. Botosaneanu, ed.) pp. 553-559. E. J. Brill / Dr. W. Backhuys: Leiden.

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