294 DR THOMAS SCOTT ON THE 



Fam. AoARTiiD.E. 



Genus Acartia, Dana, 1846. 



Acartia negligens, Dana. 

 1849, Acartia negligens, Daiua, op. cit., vol. ii. p. 26. 



This species was observed in gatherings collected at Stations 7, 11, 19, and 95, 

 26° 23' N., 20° 20' W., to 32° 15' S., 47° 30' W. 



Acartia danie, Giesbrecht. 

 1889, Acartia dance, Giesb., o}}. cit., ser. 4, vol. v. .sem. '2, p. 26. 



This occurred in gatherings from eleven stations, extending from Station 11 to 

 Station 102, 23° 50' N., 21° 34' W., to 36° 31' S., 51° 56' W. 



Tribe HARPACTICOIDA, G. 0. Sars.* 

 Fam. Cerviniid^. 



Genus Pseudozosime, new genus. 



Generic characters : Female. — In the female the body is tolerably robust, and has 

 a general resemblance to Zodme, Boeck, except that the abdomen is not so clearly 

 defined from the cephalothorax ; genital segment moderately large, with a distinct 

 transverse suture. Anterior antennse (antennules) short, stout, and composed of about 

 five joints. Second antennae and mouth organs nearl}' as in Zosime. The inner ramus 

 of all the four pairs of swimming legs is composed of two joints, and the outer of three 

 joints. The fifth pair are of moderate size ; the inner portion of the basal joint is 

 somewhat expanded, while the second joint is comparatively small. 



Banarks. — Pseudozosime differs from the other genera nearly related to it by 

 having the inner ramus of all the four pairs of thoi-acic legs biarticulated, and by the 

 fifth pair being comparatively larger and more compact. 



Pseudozosime browni, new species. (PI. VIll. figs. 9-19.) 



Female. — The body of the female tolerably stout, narrow, and elongated, Ijluntly 

 rounded anteriorly, and tapering slightly towards tlie posterior end ; rostrum prominent. 

 Length of the specimen represented by the drawing 0"95 mm. 



Antennules short, stout, composed of about five joints, and densely setiferous. 

 Antennai with the outer ramus triarticulated, and otherwise nearly as in Zosime typica, 

 Boeck. Mouth organs also somewhat similar to those in that species. 



The first four pairs of thoracic legs are moderately stout, and the inner ramus is 

 composed of two and the outer of three joints. In the first pair the inner ramus reaches 

 to the end of the three-jointed outer one, and tlie joints are nearly of equal length ; the 



* The arrangement followed for the Harpacticoida is that of G. O. Sars, Crustacea of Norway, vol. v. 



(rOY. SOC. EDIN. TRANS., VOL. .XLVHI., 540.) 



