FROM THE GULF OF GUINEA. 79 



Genus Temokopia, n. gen. (Provisional name.) 



Anterior antennae ? 22- or ? 23-jointed ; the right antenna of the male 19-joiuted, 

 hinged between the 15th and 16th joints. Posterior antenn!3e and mouth-organs as in 

 Calanus. Inner branch of the first pair of swimming-feet 2-jointed, of the second, third, 

 and fourth pairs 3-jointed. Pifth pair in the female simple, alike on both sides, and 

 each composed of a single 3-jointed branch ; in the male the fifth pair, which are 

 prehensile, and each composed of a single branch, are large and conspicuous. The 

 female abdomen consists of four and the male of live segments ; the first segment in the 

 female is considerably dilated. 



Temoropia mayumbaensis, n. sp. (PL VIII. figs. 18, 49 ; PL IX. figs. 1-12.) 



Length '93 mm. Body elongate-ovate, composed of five segments ; the first segment, 

 which is about as long as the combined length of the next three, is indistinctly articu- 

 lated at the upper half. Porehead broadly triangular. Anterior antennae of the female 

 ? 22- or ? 23-jointed.* The right anterior antenna of the male scarcely reaches to the 

 end of the thorax, is sparingly setiferous, and 19-jointed, constricted between the 11th 

 and 12th, and hinged between the 15th and 16th joints ; the proportional length.s of the 

 joints as in the formula : — 



Male : 30 . 10 . 8 . 8 . 9 . 6 . 7 ■ 8 . fl . 9 . 14 . 27 . 11 . 12 . 27 . 28 . 17 . 15 . 22 



Eight anterior antenna. ^ 2 3 4 5 7 8 9 10 11 11' 13 14 15 10 17 18 19 ' 



Posterior antennae and mouth-organs as in Calanus. The inner branches 6f the first 

 pair of swimming- feet are 2-joiuted ; the inner branches of the second, third, and fourth 

 pairs 3-jointed ; the first joint is short, while the last is equal to the combined length of 

 the preceding two joints. Pifth pair of feet in the female simple, each composed of a 

 single 8-joiuted branch, one branch being rather longer than tlie other ; the first joint 

 in both is somewhat dilated ; the inner distal angle of the second joint is furnished 

 with a spiniforra seta nearly as long as the last joint ; the last joint has a conical and 

 pointed extremity with a small tooth-like process on the inner margin. The fifth pair 

 in the male is large and conspicuous ; tlie right foot is composed of two moderately 

 large joints, which decrease in breadth towards the extremity, and terminates in a 

 long slender curved spine. The left foot, which consists of three broad joints, has an 

 excavation at the apex in Avhich the terminal sjjine of the foot probably interlocks, wliUe 

 a long curved spine springs from the end of the first joint (PL IX. fig. 9). The abdomen 

 in the female consists of four, in the male of five, segments; the first segment in the 

 female is considerably swollen, and is produced ventrally and posteriorly into a large 

 rounded process (PL IX. fig. 10). Caudal stylets short, each furnished with three stout 

 plumose terminal seta3, and a small seta on the inner margin. 



Habitat. Lat. 1° 55' 5" N., long. 6° 55' 5" E., 35 and 360 fathoms (day collections). 

 Station 23 (lat. 1° 26' 7" S., long. 10° 1' 8" E.), 235 fathoms (day collection). 



* The basal portions only of the anterior antenn;e of all the females, and of tho left antenna of all the males, 

 remain iutact ; tboy were broken off, mostly, at the end of the eighth joint; but, judging from the number of joints 

 in the male right antenna, the female antenme probably consist of twenty-two or twenty-three joints. 



