22 PROCEEDINGS OF THE NATIONAL MUSEUM vol. izi 



Spine and setal formula (based on T. and A. Scott's illustrations) 

 are as follows : 



leg 1 leg 2 leg 3 leg i 



exp. end. exp. end. exp. end. exp. end. 



seg. 1 1:0 0:0 1:1 0:1 (not illustrated by the Scotts) 



seg. 2 IV:3 3 IV:6 8 



Remarks. — This copepod seems to be limited to the waters of the 

 eastern Atlantic and is the primary species of Pandarus found in the 

 coastal waters of Europe. It seems to be restricted to smaller inshore 

 species of sharks and, as far as recorded in the literature, is found only 

 on the body surface of its host. 



Pandarus bicolor can be easily separated from the other known 

 species of the genus on the basis of the caudal rami. The relative 

 lengths of the dorsal thoracic plates of segments 2 and 3 separate it 

 from all species of the cranchii group. This copepod has twice been 

 confused by American authors (Wilson, 1932, and Causey, 1960) with 

 P. sinuatus because of the presence of a median stripe from the eye 

 spots to the distal border of the cephalon of both species. I have 

 examined specimens in the U.S. National Museum identified by Wilson 

 as P. bicolor and they are clearly P. sinuatus. 



Finally, I have placed Pandarus lividus Frey and Leuckart in 

 synonymy with P. bicolor. Wilson (1907) commented that it was 

 impossible to separate the 2 species on the basis of Frey's and 

 Leuckart's description but he did not place it in synonymy. Frey 

 and Leuckart gave no figures of P. lividus. 



Pandarus niger Kirtesinghe, 1950 



Figures 109-118 

 Pandarus niger Kirtesinghe, 1950, p. 83. 



Specimens studied. — A female paratype loaned to me by Kirte- 

 singhe, and a single collection of 6 females from Galeorhinus species 

 in Formosa. 



Female. — Since this species has been described recently by Kirte- 

 singhe (1950), I will be concerned with only those features taxonom- 

 ically important to the genus. Body form as in figure 109. Total 

 length 8.2 mm (based on an average of 2 specimens). Greatest 

 width (measirred at the widest part of the cephalon) 3.8 mm. Cephalon 

 somewhat truncated only about one-half as wide across anterior third 

 as across posterior third. First thoracic segment fused to head. 

 Dorsal thoracic plates present on segments 2-4. Plates of segments 

 2 and 3 fused basally with posterior borders more or less in a straight 

 line across proximal portion of plate of segment 4. Plate of segment 4 

 with posterior border nearly straight with only a very slight medial 

 indentation. Genital segment as in other species of genus. Abdomen 



