SURFACE COPEPODA OF THE GULF OF MANNAR. 231 



Gandacia truncata, Cleve, 1904, p. 187. 



Wolfenden, 1905, p. 1013. 



Scott, 1909, p. 155. 



Sewell, 1912, p. 368. 



This species also appears to have a wide distribution, but 

 only a single specimen was found in the collection. 



Family PONTELLID^. 



Genus Calanopia, Dana. 



Calanopia elliptica (Dana). 



Calanopia elliptica, Giesbrecht, 1896, pp. 317, 325. PI. V., 

 figs. 7-9. 



. Thompson, 1899, p. 282. 



Cleve, 1901, p. 5. 



A. Scott, 1902, pp. 406 and 423. 



Thompson & Scott, 1903, p. 251. 



Cleve, 1903, p. 356. 



Wolfenden, 1905, p. 1023. 



A. Scott, 1909, p. 177. PI. XLVIII., 



figs. 1-5. 



Pesta, 1912, p. 50, fig. 10. 



Calanopia sp. (= <S juv.), Pesta, 1912, p. 52, fig. 12. 

 Calanopia elliptica, Sewell, 1912, p. 368. 

 Pesta, 1913, p. 32. 



This species is of comparatively common occurrence in 

 Indian waters ; examples of both sexes were plentiful in the 

 Ceylon collection. The form described by Dr. Pesta {loc. cit., 

 1912) is, in my opinion, a young and immature male ; the form 

 of the fifth appendage is exactly similar to that found in 

 young males just before they undergo the sexual moult. 



Calanopia AURiviLLn, Cleve. 



Calanopia aurivillii, Cleve, 1901, p. 37. PI. II., figs. 



17-23, and PI. III., figs. 1-10. 

 . Thompson & Scott, 1903, p. 251. 



