Oncopagurus, Lemaitre, 1996

Lemaitre, R., 1996, Hermit crabs of the family Parapaguridae (Crustacea: Decapoda: Anomura) from Australia: species of Strobopagurus Lemaitre, 1989, Sympagurus Smith, 1883 and two new genera., Records of the Australian Museum 48 (2), pp. 163-221 : 194

Oncopagurus n.gen.

Sympagurus .- Lemaitre, 1989: 36 (in part).

Diagnosis. Eleven pairs of phyllobranchiate gills. Shield about as broad as long; dorsal surface usually weakly calcified medially. Corneae weakly to moderately dilated. Fourth segment of antennal peduncle armed with dorsodistal spine. Epistomial spine strongly curved upward. Right chela operculate, with well delimited dorsomesial and dorsolateral margins. Left cheliped with carpus and palm frequently with weakly calcified areas. Ambulatory legs with dactyls curved. Fourth pereopod with propodal rasp consisting of 1 row of corneous scales. Second abdominal somite with left pleuron terminating ventrally in small subtriangular lobe. Males with poorly to moderately developed paired 1st and 2nd gonopods; 1st sometimes absent, or if present each with weakly concave distal lobe; 2nd gonopods each with flat distal segment.

Species. In addition to Oncopagurus cidaris n.sp., the following are included in this new genus: Sympagurus africanus (De Saint Laurent, 1972) , S. bicristatus (A. Milne Edwards, 1880) , S. gracilis ( Henderson, 1888), S. haigae (De Saint Laurent, 1972), S. indicus Alcock, 1905 , S. minutus ( Henderson, 1896) , S. monstrosus ( Alcock, 1894) , S. orientalis (De Saint Laurent, 1972), and S. tuamotu Lemaitre, 1994.

Type species. Eupagurus bicristatus A. Milne Edwards, 1880 .

Etymology. From the Greek onkos meaning hook, and pagourus meaning crab, and referring to the curved, hook-like epistomial spine in this genus. Gender: masculine.