N.1307. JAPANESE STALK-EYED CRUSTACEANS— RATHBUN. 43 



ilisttil width of the blade. The outer maxillipeds reach to the extrem- 

 ity of the acicukr spine. Pahns of chelipeds 2^ times as long as wide; 

 distal margin, against which the dactylus folds, inclined at about 45 

 degrees to the side margins. Abdomen furnished on the third, fourth, 

 and tifth segments, with a hi'gh, l)lunt, naked, median carina: sixth 

 and seventh segments with a shallow median sulcus. 



Drinenshms. — Female, length of bod}^ from tip of rostrum to tip of 

 telson44.5 mm. , length of carapace from tip of rostrum 12.2 nnu., 

 length of scale (outer margin) 7.5 mm., length of palm of chela 5.5 mm. 



Ty2)elocaUt[i. — Hakodate, Hokkaido; S specimens (Cat. No. 2»Uo6). 



Family ALPHEID^E. 



ALPHEUS RAPAX Fabricius?, Coutiere. 



fAlpheus rapax Fabricius, Suppl. Entotn. System., 1798, p. 405. 



Alpheus brevicri^tatus de Haan, Fauna Japon., Crust., pi. xlv, fig. 1. (Specific 



name corrected in text.) 

 .Uiihras malabaricus de Haan, Fauna Japon., Crust., 1849, p. 177. 

 Al I ilieus rapax Coutiere, Ann. Sci. Nat. (8), Zool., IX, 1899, p. 14. 



Tokyo (1); Misaki, Sagami (3); Nagasaki, Hizen (2 specimens). 



ALPHEUS BREVIROSTRIS (Olivier). 



Puleemon brevirostria Olivier, Encyc. Meth., Hist. Nat., F^ntom., VIII, 1811, 



p. 664; Tabl. Encyc. Meth., 1818, pi. cccxix, fig. 4. 

 Alpheus rapax de Haan, Fauna Japon., Crust., 1849, p. 177, i)l. xlv, fig. 2. Not 



A. rapax Fabricius. 

 Alplieus digitalis de Haan, Fauna Japon., p. 178, pi. xlv, fig. 4. 

 Alpheus brevirostris CowikuE, Ann. Sci. Nat. (8), Zool., IX, 1899, p. 14. 



Wakanoura, Kii; Onomiclii, Bingo; Nagasaki, Hizen. A good 



series. 



Family HIPPOLYTID^F]. 



SPIRONTOCARIS MORORANI, new species. 



Very close to S. daUl Rathbun. Differs as follows: The dorsal 

 carina is armed with 4 equal larger spines (instead of 3), of which 

 8 are on the carapace proper and one over 

 the base of the eye; remainder of the ros- 

 trum furnished with 10 small spines above 

 and 4 spines below, of which one is near 

 the tip and makes it appear bitid. The 

 rostrum is a little shorter than in 8. dalli, fi«- io.-.spiroktocakis mororaxi, 



_j J. .-, CARAPACE (tF FEMALE, X •if. 



reachmg halt way l)etween the end or the 



antennular peduncle and the end of the antennal scale. Of the two 

 supraorbital spines one is situated well behind the other; the anterior 

 is nearly as strong as the posterior. The basal scale of the antennula 

 reaches just to the end of the second segment. The antennal scale is 

 narrower at the end than in A', dalli; the laminar portion is separated 

 by a deep narrow slit from the spine. The outer maxilliped extended 



