30 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



the male has been described by Gnanamuthu (1951) and my diagnosis 

 is based on this description. 



Body form of typical pandarid configuration. Cephalic appendages 

 like those of female except setae on first antenna are more plmnose 

 in male. Legs 1-4 biramose with each ramus composed of 2 segments. 

 All setae plumose. Legs 5 and 6 present. Abdomen 2-segmented. 

 Caudal rami attached distally. 



Remarks. — ^This genus is known only from the Indo-Pacific area 

 and consists of 2 species from the body surface of sharks of the genera 

 Carcharinus and Triakis. This genus may well be restricted to inshore 

 sharks. 



Key to Females of Genus Pseudopandarus 



Abdomen concealed in dorsal view, genital segment with posterior corners pro- 

 duced into long pointed processes gracilis 



Abdomen partially visible in dorsal view, genital segment with posterior corners 

 rounded and not greatly produced longus 



Pseudopandarus gracilis Kirtesinghe, 1950 



Figures 147-150 



Pseudopandarus gracilis Kirtesinghe, 1950, p. 84. 

 Pseudopandarus scyllii Yamaguti and Yamasu, 1959, p. 124. 



vSpecimens studied. — Paratypes on loan from P. Kirtesinghe. 

 6 females ex Scoliodon palasorrah, Nosy Be, Madagascar. 



Female. — Body form as in figure 147. Total length 4.8 mm 

 (based on an average of 3 specimens). Greatest width 1.75 mm 

 (measured at widest part of the cephalon). Thoracic segments 2-4 

 with dorsal plates. Plates of segments 2 and 3 fused basally. Plates 

 of segment 2 small and entirely lateral to those of segment 3. Plates 

 of segment 4 covering proximal part of genital segment and fused 

 basally. Posterior edges of plates of segments 3 and 4 often irregular 

 in shape (I noticed this in both samples from Ceylon and Madagascar) 

 Genital segment long (3 mm) and posterior border produced to form 

 2 lateral projections and median finger-like process. Abdomen (fig. 

 148) joined ventrally to genital segment and concealed in dorsal view. 

 Abdomen indistinctly divided into 2 segments. A small dorsal plate 

 present on first segment of abdomen and not extending beyond 

 distal tip of second segment. Caudal ramus triangular in shape, 

 widest at distal end, bearing 3 terminal naked spines and outer 

 plumose seta. Two naked subterminal spines located at distal 

 corners (see fig. 148). 



Since this species has been well described by Kirtesinghe (1950) 

 and Yamaguti and Yamasu (1959), only a few taxonomically im- 

 portant features of the appendages will be discussed here. 



