TOMOPTERIDAE 



a length of only about lo mm. for i8 pairs of feet — by the fact that in carpenteri the 

 pinnules are wrinkled and continued much farther up the feet, and by the presence of 

 genital products only in the dorsal ramus of the foot. In practice it is not easy to dis- 

 tinguish a young specimen of carpenteri from planklonis, of which I have not seen an 

 example in the present collection from south of the Antarctic convergence. 



Tomopteris (Tomopteris) planktonis, Apstein. 



Fauvel, 1923, p. 224, fig. 84 </. 

 Augener, 1929, p. 303. 



Occurrence. St. 707 (4); 710 (i); 714 (4). 



Specific characters. Up to about 10 mm. in length for 18 pairs of feet. There is no 

 prostomial notch. The neck is wide and short. The cerebral ganglion is transversely 

 elongate and bilobed, and there is a pair of black eyes. The first pair of chaetigerous 

 appendages is absent. The second pair may reach back for three-fourths of the length 

 of the body. The pinnules of the feet are oval and rather short. They begin a little distal 

 to the point where the foot forks into its two rami. From the fourth foot backwards 

 there is a large, spherical chromophil gland on the under surface of the pinnule of the 

 ventral ramus below the ventral trunk. There is also a small, indistinct hyaline gland 

 lying a little above and distal to the tip of the trunk of the ventral ramus. The gonad lies 

 in the dorsal ramus. 



Remarks. I have commented on the relation of this species to T. carpenteri under 

 the heading of the latter species. 



Tomopteris (Tomopteris) cavallii, Rosa. 



Fauvel, 1923, p. 222, fig. 84 «. 

 Occurrence. St. 451 (5). 



Specific characters. Up to about 12 mm. in length for 20 pairs of feet. The pro- 

 stomium is deeply notched in front. The cerebral ganglion is transversely elongate, 

 oval. There is a pair of brown eyes. The first pair of chaetigerous appendages is absent 

 and the second may reach back for two-thirds of the length of the body. The rami of the 

 feet are not widely separated and the pinnules are broad and rounded. There is a large 

 chromophil gland from the fourth foot backwards, on the under side of the pinnule of 

 the ventral ramus below the tip of the ventral trunk. There are no hyaline glands. The 

 gonad is confined to the dorsal ramus of the foot. 



Remarks. I cannot discover a hyaline gland in these specimens. Except for this, 

 they are difiicult to separate from T. planktonis. 



Tomopteris (Tomopteris) septentrionalis, Quatrefages, ex Steenstrup. 

 Fauvel, 1923, p. 224, fig. 84^, with synonymy. 

 Monro, 1930, p. 86. 



Occurrence. St. 41A (i); looc (12); 130 (i); 137 (2); 268 (10); 446 (15); 448 (4); 449 (7); 450 

 (25); 453 (20); 454 (4); 455 (3); 459 (5); 460 (8); 514 (25); 567 (26); 707 (3); 714 (4); 716 (2); 

 718 (6); WS 20 (2). 



Specific characters. Up to about 15 mm. in length with 23 pairs of feet. The pro- 

 stomium has a slight anterior notch. The cerebral ganglion is oval and bilobed. There 



