REPORT ON THE COPEPODA. 95 



apices ; the two joints- on the proximal, and one on the distal side of the prehensile plate, 

 are armed with curiously rlexuous, blunt, spine-like processes, and some of the ordinary 

 setae are ringed. The fifth pair of feet in the male (fig. 13) are small, the last joint of 

 the right side quadrilateral, and bearing two long falcate claws ; that of the left side 

 has a few short blunt apical claws. In the, female, the fifth foot (fig. 12) has two terminal 

 branches, the inner minute, awl-shaped, and sometimes bearing a slender hair at the apex, 

 the outer much longer and having four marginal spines. The abdomen of the female 

 is two-jointed, the first joint very large (fig. 14), and having two lateral protuberances; 

 the caudal setae are subequal, about as long as the abdomen ; in the male one of the setae 

 of each side is much longer than the rest. 



Habitat. — Only very few specimens of this species were observed in gatherings from 

 off Sibago Island, and other localities in the neighbourhood of the Philippine Islands. 

 I cannot identify these with any described . species. It may be noted that the jointing 

 of the basal part of the anterior antennae is often very indistinct, as in other species 

 of Pontella ; in some specimens I cannot count more than eighteen or nineteen joints, 

 nor does this seem to depend upon immaturity. 



8. Pontella strenua, Dana (PI. XLV. figs. 16-19).. 



Pontellina strenua, Dana, Crust. U. S. Expl. Exped., p. 1158, pi. lxxxi. fig. 4, a-d. 



Male. — Posterior thoracic angles acutely produced, that of one side much longer than 

 the other ; abdomen five-jointed ; superior eye large, and situated in the base of the 

 rostrum, inferior two in number, small, remote, and a little behind the base of the rostrum. 

 The joints immediately above and below the geniculation of the right anterior antenna 

 are provided with strongly pectinated marginal plates, which do not form excurrent 

 projections ; near the extremity of the distal pectinated plate there is, however, a simple 

 slightly curved spine (fig. 16). The terminal spines of the swimming feet are long and 

 slender, and not so finely pectinated as usual in the genus. 



Specimens which I refer to this species were taken between Sydney and Wellington, 

 and at night in the South Atlantic, October 5, 1873, near lat. 28° S., long. 30° W. The 

 animals were not perfect, and differed slightly in some particulars, probably dependent 

 on age, as for instance in the shape of the abdomen, two forms of which are shown in 

 figs. 18 and 19. 



9. Pontella inermis, n. sp. (PL XLV. figs. 10-15). 



Length, l-5th of an inch (5 mm.). Head separate and acutely pointed in front, 

 produced behind into two small backward-pointing lateral spines ; eyes two, not very 

 widely separated ; posterior thoracic angles acute, but not greatly produced (fig. 10). 



