CALIFORNIA CUMACEA — ZIMMER 427 



Until now the only other species in this category has been G. levis 

 Thomson, from which the new one is distinguished among other 

 characters by the fact that the endopod of the uropods is not pointed 

 but armed with a terminal spine. The following species of the genus 

 likewise show a terminal spine at the end of the endopod : carinata 

 C Zimmer, costata Caiman, Jongipes Caiman, picta Caiman, uni- 

 cornis Caiman, and varians Caiman. These may be distinguished 

 from the new species as follows : In carinata^ picta^ and varians the 

 pseudorostral lobes distinctly unite in advance of the ocular lobe to 

 form a pseudorostrum ; costata has longitudinal ribs on the sides of 

 the carapace; and unicornis has a forwardly directed tooth in the 

 middle dorsal carina of the carapace. (The structure of the endopod 

 of the uropod of G. siboga^ Caiman is not known. This species 

 shows distinct ridges on the carapace.) The relative length of the 

 carapace of G. pusilla G. O. Sars differs very slightly from that of 

 G. nuhila and also exhibits certain other similarities. The fonner, 

 however, is essentially a smaller species, the length of the female with 

 the brood pouch being 3.5 mm. 



Genus CAMPYLASPIS Sars 



CAMPYLASPIS CANALICULATA. new species 

 FiGTJBE 35 



Female. — The thoracic portion of the body is almost as long as the 

 abdominal, including the peduncle of the uropod. Viewed from 

 above (fig. 35, &), the carapace is moderately pointed anteriorly. 

 There is no subrostral notch. From the pseudorostral margin a rela- 

 tively narrow but distinct furrow or groove, the margins of which 

 are not developed as folds, rims backward and somewhat upward for 

 about half the length of the carapace. On either side, near the 

 hinder margin of the carapace, is a tiny pit or depression. Other- 

 wise the carapace is entirely smooth, without sculpture. On the well- 

 developed ocular lobe one sees a distinct median lens and two more 

 or less distinct lateral lenses. A fine suture is evident along the 

 median line of the carapace; this is also present on the abdomen. 

 Its course, however, is not quite straight, but in very flat irregular 

 curves. The roundish or elongate refractive flecks on the surface of 

 the carapace that occur so often in members of this genus are present 

 in this species also. There is a patch of them behind the frontal 

 lobe. Alongside the median suture in the posterior third of the 

 carapace there is an elongated spot or fleck. Similar small spots are 

 also present on the abdominal somites. 



The first free thoracic somite, as in a number of other species of 

 the genus, forms a median, lobelike, pointed projection, turned for- 

 ward and fitting into a corresponding notch in the posterior margin 



