DECAPODS 63 



D:sfn7mf ion.— This species occurs sparingly from Unalaska to Point 

 Arena, California ; 9-7 7 fathoms. 



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

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

 Albatross Vit 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 SPINA 1 (Sowerby). 

 Plate III, fig. 5. 



Cancer spinus SowERBY, British Miscellany, 47, pi. XXIII, 1805 {teste Steb- 



bing). 

 Aiphcetis spinus Leach, Edinb. Encyc, vil, 431, 18 14; Philadelphia reprint, 



VII, 271. 

 Aipheus Spinus 'L^KCn, Trans. Linn. Soc. London, XI, 347, 1815. 

 Hippolyte Sowerbai h^xcn, Malac. Pod. Brit., pi. XXXIX, 1817. 

 Hippolite sowerbei 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. Mas., ^6, 1847. — Bell, Hist. 



Brit. Crust., 284, 1853. — Smith, Trans. Conn. Acad. Arts Sci., v, 68, 



1879. 

 Hippolyte spina SiTluvsoi^i, Proc. Acad. Nat. Sci. Phila., xil, 34 (103), i860; 



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

 Spirontocaris spinus Bate, Challenger Report, xxiv, 596, pis. CVI and cvil, 

 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. 19. spirontocaHs spina. 



. Side of carapace of $ (X i|)' 



spme of the third abdominal segment. station 2842. 



1 In 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 spimis. Spinus is not an adjec- 

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

 spinus has another signification, from anCvoq, 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. 



<?^^ 



