23fi CEYLON PEART, OYSTER REPORT. 



Cristellaria tricarinella, B-euss. 

 Of very rare occurrence in the deposit from Stats. LVIII. and LVI. This is a new 

 record for the Indian seas. 



Cristellaria rotulata (Lame:.). 

 This is of rare occurrence in the Gulf of Manaar previously recorded from Indian 

 seas (2). 



Cristellaria orbicularis (d'Orb.). 

 Occurs very rarely in the samples from Stat. LVI. previously recorded from 

 Indian seas (2). 



Cristellaria vortex (Fichtel and Moll). 

 This is of rare occurrence in the deposit at Stat. LXIV. This is a new record for 

 Indian seas. 



Polymorphina regina, Brady, Parker and Jones. 

 Occurs very rarely in material from Stat. LXIV. a new record for Indian seas. 



TJvigerina aculeata, d'Orb. 

 This is of frequent occurrence at Stat. LXIV. in some hauls previously recorded 

 from Indian seas (2). 



TJvigerina asperula, Czjzek. 

 Of rare occurrence at Stat. LVIII. This species is previously recorded from 

 Indian seas (2). 



TJvigerina pygmaea, d'Orb. 

 Found sparingly at Stat, LVII., and also at Welligam Bay. Also recorded before 

 from Indian seas (2). 



Sagrina raphanus, Parker and Jones Plate, fig. 11. 

 Found sparingly at Stat. LVI., and also off Trincomalee previously recorded for 

 Ceylon (1). The specimen figured differs from the normal type by having the test 

 bent almost at right angles in the fifth chamber from the terminal one. This appears 

 due to greater growth having taken place on one side than on the other during the 

 formation of this chamber. 



Sagrina striata, Sohwager. 

 Of rare occurrence in the Gulf of Manaar a new record for Indian seas. 



Ramulina herdmani, n. sp. Plate, figs. 1-6, and also text-figs., p. 227. 

 Tubules anastomosing so as to form a large adherent mass. Chambers or ampullae 



