48 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 21 



Remarks: As noted by Murray in the Challenger Summary (1895, 

 p. 11.52), Eurypodius longirostris from station 308 was one of the prizes 

 of the Challenger Expedition, having been obtained at no other locality. 

 The small male and immature female in the British Museum remain 

 the only specimens known of this exceedingly rare species. 



Genus ANOMALOTHIR Miers 



Anomalopus Stimpson, 1871b, p. 124. A. Milne Edwards, 1879, p. 187. 

 Anomalothir Miers, 1879c, p. 648; name substituted for Anomalopus, 

 preoccupied. Rathbun, 1925, p. 23. 



Type: The Atlantic Anomalopus furcillatus Stimpson, 1871, type of 

 Anomalopus Stimpson by monotypy. 



Description: Carapace very much elongated, almost subcylindrical ; 

 rostrum very long, slender, bifid. Eyes without orbits; preorbital spine 

 small, acute; postocular spine minute. External antennae exposed from 

 above; basal [article] narrow. Antennulary fossae large. Epistome two- 

 thirds as long as broad. Merus of external maxillipeds without any 

 notch at interior angle where palpus is inserted ; external angle sharply 

 prominent. Chelipeds in female shorter than carapace. Ambulatory [legs] 

 of first pair very long, twice as long as carapace, with the dactylus nearly 

 straight, and three-fourths as long as [propodus]. Ambulatory legs of 

 posterior two pairs shorter and stouter than those of anterior two, and 

 with prehensile extremities; those of [next to last] pair shorter than 

 those of last pair. (Stimpson, modified) 



Rathbun (1925) adds that the rostral horns are contiguous for half 

 their length or more, the chelipeds in adults are longer than the carapace, 

 and the abdomen consists of seven segments in both sexes. 



Range: In the Pacific known only from the Galapagos Islands and 

 by a single species; in the Atlantic known from Cape Lookout, North 

 Carolina, to the island of Grenada in the West Indies, and by two 

 species, one of which is analogous to the Pacific form. 20-160 fathoms. 



Anomalothir hoodensis Garth 

 Plate B, Fig. 3 



Anomalothir hoodensis Garth, 1939, p. 9, pi. 1, figs. 1-4; 1946, p. 368, 

 pi. 64, figs. 1, 2. 



Type: Female holotype, A.H.F. No. 381, length 10.8 mm, width 

 5.6 mm. 



Type locality: North of Hood Island, Galapagos Islands, 140-160 

 fathoms, Velero III station 817-38. 



