DECAPODS 63 



Distribution. This species occurs sparingly from Unalaska to Point 

 Arena, California; 9-77 fathoms. 



It has been taken by W. H. Ball at Captains Harbor, Unalaska, 9 

 fathoms; Port Etches, 12-18 fathoms; Sitka Harbor, 15 fathoms. By the 

 Albatross at Gulf of Georgia, British Columbia, 67 fathoms, station 2863 ; 

 Strait of Fuca, 53 fathoms, station 3460 ; Bellingham Bay, Washington, 

 1 1 fathoms, station 361 2 ; off Destruction Island, Washington, 32 fathoms, 

 station 2869 ; off Grays Harbor, 48-58 fathoms, stations 2870, 3046- 

 3048 ; off Columbia River, 68 fathoms, station 2882 ; off Oregon, 38-77 

 fathoms, stations 3057-3059; off Point Arena, California, 51 fathoms, 

 station 3351. 



SPIRONTOCARIS SPINAi (Sowerby). 

 Plate in, fig. 5. 



Cancer spinus SOWERBY, British Miscellany, 47, pi. XXIII, 1805 (teste Steb- 



bing). 

 Alphaus spinus LEACH, Edinb. Encyc., VII, 431, 1814; Philadelphia reprint, 



VII, 271. 



Alpheus Spinus LEACH, Trans. Linn. Soc. London, XI, 347, 1815. 

 Hippolyte Sowerbai LEACH, Malac. Pod. Brit., pi. xxxix, 1817. 

 Hippolite soiverbei J. C. ROSS, in John Ross, Appendix to Narrative of a 



Second Voyage in Search of a North- West Passage, II, p. Ixxxiii, pi. B, 



fig. 2, 1835. 

 Hippolyte spinus WHITE, List Crust. Brit. Mus., 76, 1847. BELL, Hist. 



Brit. Crust, 284, 1853. SMITH, Trans. Conn. Acad. Arts Sci., V, 68, 



1879. 

 Hippolyte spina STIMPSON, Proc. Acad. Nat. Sci. Phila., xil, 34 (103), 1860; 



Ann. Lye. Nat. Hist. N. Y., X, 126, 1871. 

 Spirontocaris spinus BATE, Challenger Report, XXI v, 596, pis. CVI and evil, 



1888 (part). RATHBUN, The Fur Seals and Fur-Seal Islands of the 



North Pacific Ocean, Pt. ill, 556, 1899 (part). 



There is considerable variation, in this species, in the height of the 

 carapace in proportion to its length ; in the eyes, which may be widely 

 pyriform or smaller and subcylindrical ; in the 

 length of the outer maxillipeds (in none of the 

 Pacific specimens do the maxillipeds reach the 

 end of the acicle, while in many Atlantic ones 

 they do); in the carination and the length of the FIG.IQ. spirontocaris spina. 



* i_ i_- J uj i Side of carapace of 9 (X if)- 



spine of the third abdominal segment. station 2842. 



Hn~ regard to spina vs. spinus, Stimpson says (Ann. Lye. Nat. Hist. N. Y., 

 X, 126, 1871): " Sowerby, by the name he gave to this species, doubtless had refer- 

 ence to a spine, or the backbone : in Latin spina, not spinus. Spinus is not an adjec- 

 tive, and means only the sloe-tree, which could scarcely have been intended." While 

 spinus has another signification, from airtvoc, the name of a small bird, yet it was 

 without doubt used by Sowerby to call attention to the spine or spines of the animal. 



