1274 



CRUSTACEA. 



Ceriodaphnia textilis. 



Subglobosa, paulo oblonga, pone medium paulo latior, posticd breviter sub. 

 triangulata, obtusa. Caput breve, infra brevissiml acutum, superne 

 visum breviter subtriangulatum, obtusum. Rami antennarum valde 

 inosqui, setis paucibus et brevibus. 



Subglobose, a little oblong, broader posterior to middle, behind low 

 triangular, obtuse. Head short, very short acute below, form as seen 

 from above short subtriangular, obtuse. Posterior antennae with 

 branches very unequal, setae few and short. 



Plate 89, fig. 6 a, side view of animal, enlarged; b } dorsal view. 



Fresh-water pools at Sandal-wood Bay, Vanua Lebu, Feejee Islands. 



The length is about one-fourth greater than the breadth in both a 

 side and vertical view. The outline of the back in a side view is a 

 flattened curve; the head is large, but very short, with the front con- 

 vex but flattened, and the small acute beak below, is situated very 

 near the body. The body behind is rather low triangular, with the 

 apex small truncate, or a little concave ; there is here an opening 

 through which, when the animal is at rest, the divergent setae of the 

 dorsal abdominal appendages are exserted. The longer branch of the 

 posterior antennae is as long as the basal portion, and one and a half 

 times the length of the shorter branch. 



The shell is very neatly reticulate with hexagonal cells. There is 

 a distinct depression between the head and the back. 



Daphnia textilis, Dana, Proc. Amer. Acad. Sci., ii. 47. 



Genus LYNCEUS, Miller. 



Lynceus lattfrons. 



Valde tumidus: latere visus, rotundatus, capite non discreto, brevissirno 



