10 Ih-. .1. ( '. Molvill on Marine MoUusca 



Cerlthinm irigonostomum, sp. n. (PI. I. fig. 15.) 



C. testa parva, regulari, fusiforrai, pallide ochracea vel alba ; an- 

 fractibus 11, quorum apiealis porminutus, hevis, casteris ad 

 suturas iraprcssis, rcgulariter costulatis, costis iitrinque geramii- 

 latis, ad medium spiralitcr uniliratis, supcrficie rugosa, ultimo 

 anfractu multilirato, proecipue ad basin, et bino geraraularum 

 ordinc ad costas infra peripheriam decorato ; apertura subtrigona, 

 labro recto effuso, obtusangulo, brevitor ad basin rostrato. 



Long. G'75, lat. 2 mm. 



Jluh. Mekran Coast, Chavbar, 40 fatlioms. 



A tew examples only of a neat little Cerithiiim, with 

 regularly chased whorls, there being two rows of beading on 

 tlie riblets on either side of the sutuies, a strong median lira 

 dividing them. The body-whorl is well furnished with lirjB 

 below the periphery to the base. Mouth subtrigonous, outer 

 lip somewhat angled and prominent, shortly beaked basally. 



Cerkhiopsis eutreta * , sp. n. (PI. II. fig. IG.) 



C. testa minuta, attcnuato-cyhndrica, tenui, ochro-cinerea; an- 

 fractibus ad 10, quorum apicales 3 ochracei, Ueves, casteris ventri- 

 cosulis, ad suturas impressis, ad medium spiraliter tribus cariiiulis 

 decoratis, ultimo quatuor, infra et supra, juxta suturas, spatio 

 intervallari pra^ditis, (juod, cum intcrstitiis inter carinas spirales, 

 minute foveolatnm et alveatum est ; apertura ovata, labro paullum 

 effuso, tenui, columella excavata, canali product©. 



Long. 3, lat. 1 mm. 



Jiah. Persian Gulf, Henjam Island. 



With C. henjamensis one specimen only of a distinct little 

 shell occurred, its sculpture being peculiar. Ten-whorled, 

 the three apical being smooth, the remainder thrice spirally 

 keeled, these keels being approximate to each other; on 

 either side between them and the sutures the surface is plain 

 but much pitted and honeycombed ; the same alveate con- 

 dition obtains between the spiral keels, of which the body- 

 whorl possesses four, with curtly angled base, and plain ; 

 the mouth oval, columella slightly excavate. 



Cerithiopsis henjamensis, sp. n. (PI. II. fig. 17.) 



C. testa parva, angusta, attenuato-cylindrica, Isete ochraceo- 

 brunnea, solidula ; anfractibus ad 13, quorum apicales 3 laevissimi, 

 •vitrei, ochracei, caeteris ad suturas baud multura impressis, tri- 

 plici gemmarum spiraliura serie arete praeditis ; anfractu ultimo 



* fiT/iTjTor, honf^ycombed. 



