﻿TEREDO.— Plate IV 



ralhislx. iiiti/f lanielh! ,(/-(V'xx. '/■/./' in 

 ,;'<s„ ,uh,i„ih„iai: rnl.i; „,;■„., f,,. !„l.. 



; pro. 

 ianticd 

 ; .<ulco 



mediano atiyuslo, profunda, area postico-ceutrali 

 anyusUsdmd ; aurietdd poaficd extiis vix disiinctd, 

 iiitiig lamina notaid ; palmid!^ semicorneis, oli- 

 lowjis, una latere convexis, altera planis, ad ter- 

 iidnum hifurcaiis, stipuld hreviusculd. 

 DuNLOP's Teredo. Shell short, thick, globose, scnlp- 

 tured with beaded striae ; umboes curved, callous, 

 fitted inside with an accessory plate ; subum- 

 bonal process much arched, broad ; anterior 

 area subquadrate, anterior- central area very 

 broad ; medial sulcus narrow, deep ; posterior- 

 central area very narrow ; posterior auj'iele 

 scarcely distinguished on the outside, marked 



within by a lamina ; pallets half horny, oblong, 

 convex on one side, flat on the other, two-forked 

 at the end, stem rather short. 



Weight. Trans. Linn. Soc. 1864. 



Nancitora Bunlnpi. Wright. 



ILiili. River Como, Bengal. 



The river Como flows from and returns to the river 

 Ganges. Just on the bend Mr. Dunlop resided for 

 some time, and the Teredos of this new species were 

 found to have perforated some wood which had been 

 cut down on the spot and left to float. The water of 

 the river itself and of that part of the Ganges whence 

 it flows is perfectly fresh, and the water, being remar- 

 kably soft, is used for drinking and all culinary pur- 

 poses. We have here, therefore, a fresh- water Teredo. 



