Tioy (if H(')i(j(tl and the Arabian Sea. 251 



Dcnitalium subcurvatum^ sp. n. 



Testa gracilis, loiito accrcsccns, parum arcuala, alba, haud uitida, 

 loTigitudiiialiter tenuiter lirata, liris filiforniibus, antice circiter 

 '62, striisque incrementi conspicuia supra ct iutcr liras coutinuis 

 sculpta. 



Longit. 63 mm., diam. max. G. 



Hub. Station 275, S.W. of Cape Comorin, 731-771 fatli. 



Only a single specimen obtained. It tapers very slowly, 

 is only slightly cnrvcd and delicately ribbed, the fine ribs 

 being in places almost crenulate, caused by being cut through 

 or crossed by the strong lines of growth. 



Lepidopleunis andamanicus, sp. n. 



Tosta parva, sordide albida, elongata, raediocriter alta, in medio 

 fere carinata, intus albida, undique minute puuctulata, epidermido 

 quasi decidua punctata induta ; valva aiitica angusta, intus 

 incrassata, margine posteriore in medio angulato ; valvte centrales 

 augustoe, apice distincto instructae, margine utrinque apicem 

 leviter concave ; area^ laterales Icviter elatie, sulco arcuato trans- 

 verso utrin(iuo ssepe sciilpta; ; laminte suturales parva^, substriatac ; 

 sinus mediocriter profundus ; valva postica anteriore longior, in 

 medio mucronata ; ligamentum angustum, dense et microscopice 

 spiculosum. 



Longit. 13 mm., diam. 7, alt. 3'o. 



Hab. Off N. Sentinel Island, Andaman Islands, 24.0 fath. 



Eather like L. urctica, Sars (Moll. Keg. Aret. Norveg. 

 pi. vii. figs. 7 a, 7 d-7 g), but not quite so broad, more 

 sharply angled down the back, with a narrower sinus between 

 the sutural laminie, more distinct apex to the central valves, 

 &c. The sculpture is peculiar. The surface seems to be 

 covered with a minutely shagreened epidermis, which is easily 

 rubbed off, leaving, however, theimpression of theshagreening. 

 The curved sulcus at the sides of the valves being continuous 

 round the shell marks off a narrow encircling zone ; it is not, 

 however, present in every specimen. 



Nucula [Acild) granulata, sp. n. 



Testa valde iua^quilatcralis, ovato-subtrigoualis, aniicc oblique sub- 

 truncata, ad extiemitatem subacute angulata, postice acute 

 rotundata, niodice couvexa, albida, i^eriostraco tenui olivaceo-flavo 

 induta, seriebus confertis arcuatis granorum postice divergentibus 

 instruct a ; umbones incurvati, ad apicem Iseves, louge ante medium 

 siti ; lunula infra umbones excavata, dein promiuens ; area 

 postica angusta, lanceolata, Ijevis, circumscripta. 



Longit. Jo mm., alt. 11, diam. 7. 



