236 SPOLIA ZEYLANICA. 



but the spines on the distal segment are somewhat differently- 

 arranged. The first spine arises from the middle of the 

 external margin and the remaining three from the extreme 

 tip ; the inner margin is beset with fine hairs. 



It is evident that this species closely resembles L. detruncata, 

 but in both sexes there are certain constant differences that 

 render identification comparatively easy. 



Labidocera pectin ATA, Thompson & Scott. 



Lahidocera pectinata, Thompson & Scott, 1903, p. 252. 



PI. II., figs. 10-14. 

 Labidocera similis, Cleve, 1903, pp. 364 and 378. PI. XIX., 



figs. 4-6. 

 Labidocera pectinata, Sewell, 1912, p. 370. PI. XXIII., 



figs. 8-9. 



A single example of this rare species was obtained from a 

 tow-netting taken at Paumben. 



Genus Pontella, Dana. 



PoNTELLA DAN^, var. CEYLONicA, Thompson & Scott. 



Pontella danx var. ceylonica, Thompson & Scott, 1903, p. 



252. PI. II., figs. 1-5. 

 Sewell, 1912, p. 370. 



A few examples were obtained ; they agree exactly with the 

 original figures and description. 



Pontella investigatoris, SeweU. 



Pontella investigatoris, Sewell, 1912, p. 371. PI. XXIII., 

 figs. 1-3. 



This species was first described by me from male examples 

 taken on the coast of Burma. Several specimens were 

 obtained in the present collections from the Ceylon pearl banks, 

 and these agree exactly with the t5rpes. One cannot help 



