FEOM THE GULF OF GUINEA. 75 



less damaged ; two of them were carefully dissected, from tliese dissections figures have 

 been prejiared of a few of the more important details, not represented in the ' Challenger ' 

 Report. I have also been enabled to add tlie following description : — Secondary branch 

 of the anterior antennfe nearly twice the length of the primary branch, 8-jointed, the 

 last nearly as long as the preceding six joints, and furnished with four terminal hairs. 

 Both branches of the first four pairs of swimming-feet 3-jointed, the middle joint of the 

 outer branch of the first pair shortest, bearing a comparatively long, slightly curved, 

 setiferous spine on the exterior distal angle ; the last joint has two shorter and more 

 slender spines on its outer margin, and a long slender terminal spine, both branches 

 furnished with numerous, long, plumose setse. In the second, tiiird, and fourth pairs 

 the inner are much shorter than the outer branches ; the three joints of the outer 

 branches are each armed with a stout dagger-like spine at tlie outer distal angles ; the 

 last joint has two similar additional spines inserted in excavations of the outer margin, 

 and a broad falciform terminal spine, finely serrate on the outer margin ; both branches 

 are well furnished with plumose seta3. The fifth pair in the female resemble the figured 

 example in the ' Challenger ' Report, but theii* form seems to vary somewhat in different 

 specimens, both as regards the serration of the last joint, and also the comparative length 

 and breadth of the joints. Abdomen in the female 4-jointed, first joint much larger 

 than the others and dilated. Caudal stylets short, not divergent, each with five long, 

 plumose terminal sette, the second from the inside longer than the others. 



The mouth is a short tube ; the front part projects outward and backward so as to 

 form an oblique opening. The edge of the upper part of the tube has a dense fringe of 

 hairs, which can be readily observed if tlie specimen be in a favourable position. 

 Judging from a careful examination of the ' Buccaneer ' specimens, I am inclined to 

 think that the figures in the ' Challenger ' R-eport represent a female instead of a 

 male. 



Genus Temora, Baird. 



Temora, Baird, Brit. Entomostraca, 1850. 

 Diaptoinus, Lubbock, Trans. Eutoin. Soc. 1856. 



Temora stylifeka (Dana). 



1849. Calanus stylifer, Dana, Amer. Joiu"n. Sci. vol. viii. 



185G. D'utptomus dubius, Lubbock, Trans. Entom. Soc. vol. iv. n. s. p. 21, pi. ii. figs. 1-7. 



1883. Temora dubia, Brady, Report Cliall. Copep. p. 79, pi. xxv. figs. 1-17. 



Kahitat. Station 2, surface and 25 fathoms, January 1st (night collections). Station 9, 

 25 fathoms, January 10th (day collection). Station 11, 10 fathoms, January 19th 

 (day collection). Lat. 1° 55' 5" N., long. 5° 55' 5" E., 360 fathoms, January 22nd 

 (day collection). Lagoon, Sao Thome Island, surface, January 27th (one day and one 

 night collection). Libreville, Gaboon River, surface, January 28th (day collection). 

 Station 23, 10, 20, 135, and 185 fathoms, Pebruary 5th (day collections). Bananah 



10* 



