6 Dr. J. ('. Melvill on Murine Mo^/us:a 



Teinostoma emni'^hs'^, sp. n. (PI. I. fig. 8.) 



T. testa subrotunda, profunde ct late umbilicata, solida, calcarca, 

 all)a ; anfrnctibus ad 5, quorum 2| apicales bulbosi, lactei, loevcs, 

 ca'teris arctissimc spiraliler lirntis, liris sub leiite irregulariter 

 rugatis. intorstitiis toveolatis, ad suturas valide imprcssis. ultimo 

 rotuiidalo, liiieis incremcufalibus longitudinaliter accinctis, liris 

 apud basin circa umbilicura distantibus ; aportura obliqua, semi- 

 lunata, pcristomate subincrassato, pauUum offuso, margine 

 columellari recto, callo linguifero umbilicura obtegente. 



Alt. 6, diam. 5 ram. 



Hah. Persian Gulf; llenjani Island, 190(5. 



A most interesting species, of doubtful place and affinities. 

 After much consideration, I began by calling it a Cyclostreina, 

 but it might, owing to the obliquity of mouth, be equally 

 thought an Adeorbis, while the general "faciei?" suggests 

 Eiinaticina. There are several points of agreement with 

 Teinostoma parvuhim, Iledley, judging from figure and 

 description, more especiall}' as regards the close spiral lirje 

 uniformly covering the whole surface, and also the prolonga- 

 tion of the tongue-shaped varix over the umbilicus. Tliii 

 causes me to consider it of the same genus. 



Ethuliu diotrephes f, sp. n. (PI. I. fig. 9.) 



E. testa parva, alba, profunde umbilicata, solidula ; anfractibus 4, 

 quorum apicales 14 perlieve-:, bulbosi, caeteris supra peripheriam 

 omnino fere planuiatis, delicatissime undique spiraliter liratulis, 

 lirulis arctis, sub lente punctulosis, oblique radiatim decurvatis, 

 extus marginulatis, perijjheria acute carinata, subtus lirulis simi- 

 liter arete punctulosis, circa umbilicum radiatim exteusis ; apertura 

 rotunda, labro extus paullum incrassato, subangulato, continue, 

 columella late ct triangulatim supra umbilicum extensa et 

 lingulita. 



Alt. 2, diam. 3'20 mm. (sp. maj.). 



Ilah. Gulf of Oman, lat. 24° 58' N., long. 56° 54' E., 150 

 fathoms in .shell-sand. 



Unfortunately both tlie examples that have occurred of this 

 strange species are broken; tlie larger especially so in the 

 region of the mouth, the smaller, however, showing these 

 portions more perfectly. I know no shell at all comparable; 

 and had hoped, before attempting to describe it, that some 

 perfect specimens would be found, but this now seems very 

 unlikely to be the case. It is small, of thickish substance, 



* t/(/ifX»js, harmonious, 

 t ^lorpiipiiVj noble. 



