1870.] Brief notes on the Geology Sfc. of Nancowry harbour. 35 



1 Serranus Sonnerati, C. V. 



2 Ambassis Dussumieri, C. V. 



3 Garanx hippos, Linn. 



4 Sillago sihama, Forsk. 



5 Trypauchen vagina, Bl. Schn. 



6 Atherina Forshalii, 0. V., 5 specimens. 



7 Pomacentrus punctatus ? Qu. and Gaim. 

 D if, A T * 7 , L. 1. 28. 



Height of body J- : length of head I : of caudal f of the total 

 length. Preorbital denticulated, longer than deep, a notch between 

 it and the suborbital ring, caudal lobed, the upper the longest. 

 The dorsal spines gradually increase in length to the last. Colour 

 brownish, head dotted, a light spot on each scale ; a blackish 

 brown band, anteriorly edged with white, exists upon the free por- 

 tion of the tail posterior to the dorsal fin : opercles darkest 

 superiorly. 



8. JYuriamalabarica, Day (variety), two specimens each 2£ inches 

 long. Pectorals elongated reaching to the middle of the ventrals, 

 barbels extending to the base of the ventrals. A well marked 

 black spot at the root of the caudal fin. 



9. Clupea Neohowii, C. V., five specimens. 



10. Chatoessus chacunda, H. B. 



1 1 . Temera Hardwickii, Gray. 



General remarks on the Mollusca, by G. N e v i 1 1, Esq. 



The collection of Mollusca* made by Mr. Ball at the Andamans 

 and Nicobars, though not very extensive, still includes a few very 



to the Andamans and Nicobars for the purpose of chiefly collecting Reptiles 

 and Mollusca, I have also obtained above 30 species of fishes, among which 

 there are several new species. Dr. Day is at present engaged in an examina- 

 tion of these. (S t o 1 i c z k a.) 



* I now possess about 20 species of land-shells from the Nicobars, and a 

 somewhat larger number from the Andamans; from both groups of islands 

 there are several interesting new species, the descriptions of which are now in 

 preparation. Of marine shells I obtained on my own visit, and through my 

 collector who was most kindly aided by Capt. Eundall, about 200 species 

 from the Nicobars, and about 300 species from the Andamans. From the 

 latter I have a large number of little shells, chiefly obtained with the dredgyt. 



