446 MESSRS, MELViLL AffD STANDEE OX [June 18, 



appearance. Aperture narrowly oblong : outer lip thickened, with 

 a very shallow, small, but broad sinus ; columella straight, and 

 canal short. 



Superficially like 0. polynesiensis Eeeve, but widely diifering in 

 character of ribs and greater attenuation of form. 



Clathurella tinota Eve. 



I. Karachi. Occurs at very low tide, amongst mud and weed 

 on rocks. 



Var. lemniscata Nevill (sp.). 

 I. Bombay (Abercrombie), with the type in shell-sand. 



DONOVAIv"IA BIOOLOE Melv. 



Lachesis bicolor Melv. Mem. Manch. Soc. vol. xlii. part 2 (1898), 

 no. 4, p. 14, pi. i. fig. 27. 



P.G. No special locality given. 

 M.C. Charbar, rarely. 



Cythara EDiTHiE, sp. n. (Plate XXIV. fig. 11.) 



0. testa gracili, ftisiformi, alba, castaneo-tincta ; anfractibns 8-9, 

 quorum apicales duo vel tres calcarei, albi, la;ves, cceteris eleganter 

 recticostatis, costis paucis, in antejjenultimo quinque, penultimo 

 et ultimo sex, plerumque obscure castaneo variegatis, undique 

 spii-aliter sub lente arctissime et delicatissime striatis,apiid suturas 

 multuin impressis j aperiura angusta, oblonga, labro extus p)aul- 

 lum effuso, incrassato, dorsaliter pallide castaneo -maculato, intus 

 recto ; columella alba, recta, minute multiclenticulata. 



Long. 10*25, lat. 3 mm., sp. maj. 



Bab. Gulf of Oman, Maskat. 10 fathoms. 



Allied to C. ciihara Gould, but more graceful aud fewer-ribbed ; 

 a species, too, of which we have not been able to find a description. 

 C. tenuilirata Eve. is also aXdn to our species, we having closely 

 compared it; but it differs in form, the number of costae being 

 identical. 



Cythara gradata G. & H. Nevill. 



1. Bombay (Rev. S. B. Fairbanh) {A. Abercrombie ?). 

 Cythara hypbroalles Melv. 



P.G. Gulf of Oman, Maskat. 20 fathoms, sandy mud. 



Cythara typhonota \ sp. n. (Plate XXIV. fig. 12.) 



C. testa alba, solidiuscula, ultimo anfractu dorsaliter apucl medium 

 nigrescenti-tceniato ; anfractibus octo, gradatis, apud suturas 

 impressis, longitudinaliter recticostatis, costis idtimum apud an- 

 fractum 12,fere Imvibus, sub lente spiraliter obscure undique 

 tenuistratis ; apertura oblonga, labro simplice (Juvenili) j 

 columella fere recta. 



Long. 8, lat. 1*50 mm,. 



P.G. Tumb Island. 17 fathoms, sand. 



^ TiKpos, smoke ; vioros, back. 



