CALIFORNIA STALK-EYED CRUSTACEA. 55 



of the center into a small median tooth and two larger lateral ones. A 

 tooth between the two tissures in the superior margin of the orbit. Auten- 

 nules nearly longitudinal, the fosettes extending nearly to the margin of 

 the front. Basal antennal joint not strongly produced at its distal end; 

 second joint broad, flattened, distally expanded and provided with a tuft 

 of long setae at the distal end; third joint subcylindrical and about as long 

 as the preceding; flagelhim long and hairy. A small tooth on the inferior 

 margin of the orbit next to the inner fissure. Eye-stalks with a small 

 tooth on the anterior surface. Sides of the carapace armed with ten to 

 thirteen closely set, granulated teeth which extend upon the postero- 

 lateral margin; in front of the rounded lateral angles the teeth are strongly 

 tipturned and bent forwards; alternate teeth are the more acute; the first 

 sharp tooth the third frotn the front. Antero-external of the merus of the 

 maxillipeds produced; the inner margin notched behind the articulation 

 of the palp. Chelipeds very stout; merus about as wide as long; carpus 

 granulated on the outer side, the granules becoming larger above where 

 there may be a few small tubercles; a spine at the antero-internal angle 

 below which there is a tooth; hand thick and high; the short upper edge 

 of the palm bears two rows of small tubercles and on the outer surface 

 there are five delicate, granulated lines, the two lower lines the finest and 

 continued upon the short, thick pollex; both fingers dark colored. Legs. 

 hairy; dactyls about as long as the propodi. Sixth abdominal segment 

 in the male nearly square, the last narrowly triangular. 



Length of carapace, male 17 mm. 



Breadth of carapace, male 21 mm. 



Mutiny Bay, Alaska! Queen Charlotte Island, Van- 

 couver's Island, British Columbia, Gulf of Georgia, Puget 

 Sound, northern to Lower California! From low tide 

 mark to several fathoms in depth. 



Miss Mary Rathbun has recently united Trichocar- 

 cinus with the genus Cancer and reports two Japanese 

 species, gibbosulus (De Haan) and amphicetus ( = Tricho- 

 carcinus dentatus Miers), from California. 1 Oregonensis 

 is closely allied to De Haan's species. 



Section XANTHINI Ortmann. 



Carapace rounded or subquadrate. Front wide and generally divided 

 by a median notch. Antenmiles oblique or transverse. 



i See Proc. U. S. Nat. Mus., Vol. XXI, 1898, p. 681. 



