397 



terminal portion of the body. The rostrum is long, reaching 

 to the end of the first segment of the peduncle of the first 

 antenna. The terminal segment has the posterior margin 

 truncate and slightly emarginate. The ventral surface of 

 the first segment of the pleon is produced into a particularly 

 stout tooth, covering those on the next two segments. The 

 first antenna has the nagellum long, composed of about 50 

 rather short joints. In the uropoda the outer branch is 

 shorter than the inner, it ends truncately and has the outer 

 and posterior margin obscurely serrate ; the inner branch 

 reaches to the end of the terminal segment, and has the end 

 rounded (see fig. 10). 



Serolis longicaudata, Beddard. 



Fig. 11. 



Serolis longicaudata, Beddard: 1884, I.e., p. 72, pi. vii., 

 figs. 8-10, %nd pi. viii., figs. 1, 2; Whitelegge : 1901, I.e., p. 237. 



Off St. Francis Island, 6-13 fathoms, collected by Dr. 

 Verco, 2 males, length 8 mm., breadth 5 mm. 



In the shape of the body, the short epimera, long rostrum, 

 and long pleon with incurved sides, these specimens agree 

 with Beddard's description. The antennae and other append- 

 ages are also closely similar to those described by him, and 

 I have no doubt that the specimens belong to this species. 

 The 'Challenger" Expedition obtained only one immature 

 female, though on pi. viii., presumably by misprint, it is 

 described as a male. 



Beddard says "the cephalic shield as well as the rest of 

 the body is quite smooth, and free from tubercles" (1884, 

 p. 73). In the two small specimens that I have examined 

 there is a distinct median keel, and the median tubercles are 

 fairly distinct on the three free segments of the pleon, and to 

 a less extent on the peraeon segments. The first three seg- 

 ments of pleon bear median teeth on the ventral surface, as 

 in S. tuberculata and S. aust raliensis , and the first is the 

 largest, but I cannot make out the "fenestrae" described in it 

 by Beddard. The terminal segment has the posterior margin 

 concave. In the uropoda the two branches are subequal, the 

 outer one being only very slightly shorter than the inner; it 

 is crenate at the end ; the inner branch has the end rounded 

 and with small crenations (fig. 11). 



Serolis minuta, Beddard. 



Serolis minuta, Beddard: 1884, I.e., p. 77, pi. vii., figs. 2-6: 

 Whitelegge: 1901, I.e., p>237. 



Off St. Francis Island, 6-13 fathoms, collected by Dr. 

 J. C. Verco, 2 females. 



