Callianassoidea Dana, 1852

Komai, Tomoyuki, 2013, A New Species of the Ghost Shrimp Family Ctenochelidae (Crustacea: Decapoda: Axiidea) from Japan, Species Diversity 18, pp. 45-55 : 45-46

Superfamily Callianassoidea Dana, 1852 Family Ctenochelidae Manning and Felder, 1991 Subfamily Ctenochelinae Manning and Felder, 1991 Ctenocheloides Anker, 2010

Type species. Ctenocheloides attenboroughi Anker, 2010 .

Emended diagnosis. Carapace with cervical groove deep or shallow, suture-like; gastric prominence present, while cardiac prominence present or absent; linea thalassinica running along entire length of carapace; frontal margin slightly convex, without rostral spine or median ridge. First pleomere without pleura; third to fifth pleomeres without setal rows. Sixth pleomere without lateral projections. Eyestalk somewhat flattened dorsoventrally; cornea well pigmented, dorsal, subterminal. Antennular peduncle shorter and not stouter than antennal peduncle. Antennal scaphocerite well developed, subacute distally. Scaphognathite of maxilla lacking long seta on posterior lobe. Second maxilliped without exopod, with small or minute epipod. Third maxilliped without exopod; ischium-merus pediform; merus with prominent spine mesially; propodus and dactylus slender. Chelipeds with ischia each bearing row of minute denticles on ventral margin; meri each with tiny denticle on ventral margin; finger of at least one side slender, longer than palm, prominently pectinate. Second pereopod chelate. Third pereopod with subrectangular propodus, with distal spine on ventral margin. Male first pleopod uniramous. Male second pleopod biramous, generally similar to third to fifth pleopods in structure, but shorter and narrower, with appendices interna and masculina arising distal to midlength of endopod. Female first and second pleopods unknown. Third to fifth pleopods foliaceous, each with slender, digitiform appendix interna. Uropodal exopod ovate, without lateral incision, fringed with row of spinules noticeably increasing in size posteriorly.

Composition. Ctenocheloides attenboroughi and C. nomurai sp. nov.