96 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol XVl. 



An excessively small pure white Couthouyia, but of most distinctive character, 

 the sculpture being remarkably ornate and fine. The last two whorls are 

 sharply keeled, and on the body-whorl another keeled projection surrounding 

 the narrow umbilicus merges at the base with the white, thickened, and 

 flattened peristome. Aperture ovate, columellar margin thickened. 



ADEORBIS AXIOTIMUS* sp. n. (PI. B. fig. 8.) 



A. testa paullum depressa, prof uncle urabilicata, alba, delicata, subpellucida 

 anfractibus 4, quorum apicalis fere immersus, minutus, huic proximus anfrac- 

 tu? magnopere inflatus, nitidulus, ultimo castero^multum exsuperante,undique 

 cum penultimo, tenuissime longitudinaliter striato ; apertura magna, ovato- 

 rotunda, labro tenui, simplici, continuo. 



Alt. 75 diam. 2 mm. 



Hah. Gulf of Oman, lat. 24° 58' N., long. 56° 54' E., 156 fathoms. 



Very delicate and aubtransparent ; the apical whorl is almost immersed and 



depressed owing to the tumidity of the next, which is shining and almost 



smooth, the last whorls being beautifully and finely striate. 



ERA10 RECONDITA,} sp. n. (PI. B. fig. 9.) 



E. testa parva, nitida, alba, Isevissima, tenui ; anfractibus 5|, apicali obtuso 

 mamillato, cseteris laavibus, immaculatis, ultimo magnopere exsuperante ; 

 apertura angusta, labro supra paullum effuso, nitido, albo, incrassato, intus 

 minute denticulato. 

 Long. 5, lat. 3mm. (sp. maj.). 

 Hob. Gulf of Oman, lat. 24" 58' N., long. 56° 54' E., 156 fathoms. 



Var. (vel sp.?) HAPLOCHILA, nov. (PI. B. fig. 10.) 

 E. testa ut supra, sed labro intus simplici, piano, nequaquam denticulato. 



Hah. Gulf of Oman, cum prsecedente. 



Although this var. is not denticulate in the inner side of the lip, we cannot 

 disassociate the two forms of this interesting Erato. It is evidently benthal in 

 its habit, and the discovery of more specimens may furnish links to bind these 

 two forms yet closer together. 



EULIMA DECAGYRA, sp. n. (PI. B. fig. 11.) 

 E. testa minutissima, Candida, polita, fusiformi, superne multum attenuata ; 

 anfractibus 10, apicali obtuso, diaphano, pernitido, ceteris applanatis, politis, 

 ultimo basim versus ovato, solidiusculo ; apertura parva, ovata, labro paullum 

 incrassato ; columella declivi, apud basim angulatim incrassata, nitida. 

 Long. 2'75, lat. 1mm. 

 Hah. Gulf of Oman, lat. 24° 58' N., long. 56° 54' E., 156 fathoms. 

 A shining, white, polished species, noteworthy for its gradually attenuate 

 spire, ovate thickened base, and aperture proportionately small. We do not 



* aij-joTJ/CAos, worthy of honour, 

 t Reconditus, hidden 



