551 



444 



Fig. 237. Platyscelus serratulus Stebbing. 



444 



4. Platyscelus crustulatus (Claus, 1879) (Fig. 238) 



Claus, 1879b: 12 (Hemityphis); 1887: 39 (Hemityphis).— crM^m/Mm 

 Bovallius, 1887a: 46 {Dithyrus).—stellatus Bovallius, 1887a: 48 

 iPithyrus). 



Length of adult females up to 6 mm, of males up to 5 mm. 



The body is compact and the telson may be tucked under the pereon, 

 but not to the extent as in P. ovoides. The head is anteriorly smoothly 

 rounded and ventrally terminates in a short beak-shaped process. The 

 distal segments of the flagellum of antennae II in males are longer than 

 in other species of the genus, and 2/3 the length of the proximal segments. 



The 2nd segment of pereopods I has a bulged anterior margin and 

 a straight posterior one; the distal segments together are longer than 



