CALIFORNIA STALK-EYED CRUSTACEA. 199 



scale broad, short, about equal to the length of the telson; the peduncle 

 extends about two-thirds the distance to the tip of theacicle. Maxillipeds 

 very large, similar to those of palpator ; in adults the tip of the antepe- 

 nultimate joint may reach the tip of the antennal scale. The first pair of 

 chelipeds often reaches beyond the acicle. The relative lengths of the joints 

 of the carpus of the second pair are about the same as in palpator; hand as 

 long as the last three carpal joints. Posterior legs stouter than in palpator 

 but otherwise very similar. Postero-lateral angle of the fourth abdominal 

 segment broadly rounded but furnished with a minute spine-tooth; that 

 of the fifth segment acute. Telson dorsally flattened, having four or five 

 pairs of spinules; tip rounded, wider than in palpator, and having several 

 marginal setae between the small median spine and the postero-lateral 

 spines. 



Length, 49 mm.; length of carapace, 16mm.; of external maxillipeds, 

 32 mm. 



Sitka (Brandt); Vancouver's Island (Smith); Puget 

 Sound (Dana); Humboldt County, Calif. ! San Francisco 

 Bay (Stimpson)! 



Differs from palpator in its larger, stouter body, shorter 

 rostrum, much shorter and broader antennal scale, and 

 stouter posterior legs. 



Heptacarpus Taylori (St.) 



Hippolyte Taylori STIMPSON, Journ. Bost. Soc. Nat. Hist., Vol. VI, 1857, 

 p. 500. KINGSLEY, Bull. Essex Inst., Vol. X, 1878, p. 61. LOCKING- 

 TON, Ibid., Vol. X, 1878, p. 160. 



A short, plump species very closely allied to brevirostris, but the rostrum 

 is shorter, reaching but very little beyond the anterior margin of the cara- 

 pace and armed above with five or six teeth, the last three or four situated 

 on the carapace; the teeth become more closely set and more strongly 

 inclined forwards anteriorly, the end of the rostrum appearing curved 

 downwards, although the lower margin is nearly horizontal; there is but 

 one spine on the upper distal margin of the first joint of the antennules; 

 the telson is narrower than in brevirostris, and the distance between the 

 small median spine at the tip and the spines at the postero-lateral angles 

 is not nearly so great, and there are only one or two marginal setae on 

 either side of the apex, instead of four or five as in the preceding species . 

 None of the specimens of Taylori I have seen attain nearly the size 

 reached by brevirostris. The rostrum is rarely so long as in that species, 

 and when it is so it maintains its characteristic appearance. 



