42 ART. 1. — CHARLES ELIOT: 



which is somewhat larger than any hitherto recorded. The cen- 

 tral tooth is wide with 12-17 denticles on either side of the 

 median cnsp : the first central is like half the central cnsp, bear- 

 ing 12-17 denticles : the remaining laterals are simply hamate 

 not denticulate. 



Hervia ceylonica ( ? ) Farran. 



Farran on Opistbobrancbiate Mollusca in Ceylon Oyster Report 1905, p. 331. 



Two specimens from Enonra, Snruga. They are colourless 

 and somewhat distorted, but the larger would apparently be 

 about 20 mm. long, if straightened. 



The external characters are on the whole those of Hervia. 

 The angles of the foot are moderately produced. The cerata are 

 thin and rather long, arranged in six irregular transverse rows, 

 with a gap behind the first row. The oral tentacles are large 

 and strong. No armature could be found on the genitalia. The 

 jaws bear a single row of well developed denticles. The radula 

 consists of twenty five teeth which bear 6 denticles on either 

 side of the central cusp. 



I think these specimens are probably the Hervia ceylonica of 

 Farran but in the absence of notes on the colour and shape of 

 the living animal it is impossible to express a positive opinion. 

 Against the identification may be set the denticles of the teeth, 

 which are six and not five in number, and the denticles of the 

 jaw which are strong, fairly regular and blunt at the tips, where- 

 as the jaws of H. ceylonica are irregularly denticulate. 



Hervia rosea ( ? ) Bergh. 



Bergb, Malac. Unters, in Semper's Reisen, Heft, xvii, and Beitr. zur Kennt, der Aeohïliaclen, 

 ix, pp. 677-680, 1888. 



Two specimens from Misaki about 15 mm. long, colourless 

 except for a faint rosy tinge. The radula consists of 19 teeth 

 bearing 3-4 denticles on either side of the central cusp. The 

 other characters are much as in the specimens described as H. 

 ceylonica ( ? ) 



