FROM CURISTMAS ISLAND. 295 



(PI. XIII. fig. 3) fire long, sharp-pointed, and spi^eading, the 

 width between the points being § of the width of the cephalon 

 and equal to the length of the abdomen without furca. The 

 .abdomen is wide in front and regularly tapered to the furca, 

 the segmentation between the genital and anal segments being 

 ratlier obscure. Immediately behind and exterior to each genital 

 opening is a small blunt process or papilla projecting beyond 

 the margin of the genital segment in dorsal view. The setfe 

 at the genital openings are very small and might easily be 

 overlooked. 



The 2nd antenna (PL XIII. fig. 4) is much stouter than in 

 C. andreiosi and has one strong tooth on the inner margin of the 

 2nd joint. The seta on the 2nd joint is rather more than half as 

 long as that on the 1st joint, and reaches almost to the end of 

 the inner edge tooth. The terminal claw of the 2nd antenna is 

 strong. 



The swimming-feet have no special characters. The terminal 

 spine of the exopodite of the 2nd foot (PI. XIII. fig. 6) is only very 

 slightly curved. The endopodite of the 4th foot (PI. XIII. fig. 5) 

 bears two moderately strong setae, and the outer edge spine of the 

 1st joint of the exopodite is i-a.ther shoi^t. 



This species is rather closely allied to the above-described 

 C. andreiosi, having, like it, setae on the female genital segment, 

 two setfe on the endopodite of the fourth foot, and a short fvirca. 



Six specimens were found in three gatherings. 



Literature referred to. 



(1) Brady, G. S. — 'Challenger' Reports^ vol. viii. pt. xxiii. 



Copepoda, 1883. 



(2) Claus, C. — Die freilebenden Copepoden, 1863. 



(3) Cleve, p. T. — " Plankton from the Indian Ocean and 



Malay Archipelago." Konigl. Sv. Vet.-Akad. Hand!., 

 Bd. 35, No. 5, 1901. 



(4) Cleve, P. T.— " Plankton collected by Mr. Thorild Wulff' 



during a Voyage to and fi'om Bombay." Arkiv fiir 

 Zoologi, Bd. i., 1903. 



(5) Dahl, F.— Verb. Deutsch. Zool. Ges. 1894. 



(6) Dana, J. D. — Proc. Acad. Nat. Sci. Philadelpliia, ii , 



1845. 



(7) Dana, J. D.— Ann. Nat. Hist. vol. xviii., 1846. 



(8) Dana, J. D. — Proc. Amer. Acad. Sci. ii., 1849. 



(9) Dana, J. D, — U.S. Explor, Exped., vol. xiii. Crustacea, 



1852. 



(10) GiESBRECHT, W. — Fauna u. Flora des Golfes von Xeapel, 



vol. xix. Copepoda, 1893. 



(11) WoLFENDEN, R. N. — Fauna and Geography of the Maldive 



and Laccadive Archipelagoes, vol. ii., suppl. 1, Copepoda, 

 1905. 



20* 



