CALIFORNIA STALK-EYED CRUSTACEA. 195 



included H. armata and H. cornuta of Owen; H. Phippsii 

 Kroyer, with which Smith unites H. turgida Kroyer, 

 H. vibi^ans St. ( 6 var.), and H. ochotensis Brandt; and 

 H. spinus, which is now the type of Bate's genus Spiron- 

 tocaris. All of these are circumpolar species, the west- 

 ern representatives of which I have not seen. 



Another species of Hippolyte from Vancouver's Island 

 has been described by Bate as H. esquivialtiana . It is not, 

 however, a true Hijpjjolyte, but the description is. not 

 sufficiently complete to enable one to determine just 

 where it belongs. Hippolyte sitchensis Brandt has been 

 reported from California by Stimpson, but a remark in 

 Stimpson's description of H. picta discloses the fact that 

 what he called sitchensis was probably another species. 

 ^'Pida,'' says Stimpson, '^differs from ^. sitchensis in 

 its longer external maxillipeds and non-carinated abdo- 

 men." It is certainly here implied that sitchensis has a 

 carinated abdomen which, however, is not the case. 

 Brandt in his description of that species says: "Annulus 

 abdominis tertius facie dorsali ecarinatus,'' and further 

 on that this species differs from H. gibha '' durch den 

 Mangel des Riickenkieles des dritten Bauchgiirtels.'' 



Heptacarpus, gen. nov. 



Carapace carinated anteriorly and furnished with a dorsally serrated 

 rostrum; the anterior margin is furnished with two spines, one just below 

 the orbit, the other (generally the smaller) at the antero-lateral angle. No 

 supraorbital spine. Ocular peduncles short, stout, single-jointed, and 

 furnished with an ocellus on the posterior side. Antennules with a well 

 developed outer basal spine; flagella two, a thick outer one terminating in 

 a slender portion, and a slender (generally longer) inner one. Antennae long, 

 with a well developed scale, the outer margin of which ends in a spine. 

 Mandibles strongly incurved, furnished with a slender apical process and 

 a two-jointed palp. External maxillipeds devoid of an exognath. Anterior 

 chelipeds stout, the carpus not excavated in front as in Hippolyte; hand 

 oblong, the fingers ending in small curved claws or hooks. Second pair of 



