116 Dr. J. C. Melvill 071 Marine Mollusca 



Sh/lopt//gma clymene *, sp. n. (PI. IV. fig. 15.) 



S. testa parva, tenui, alba, perlawi, elongata, supra brevicaudata ; 

 anfractibus ad 9, quorum apicales duo laterali-beterostrophi, 

 ceteris ad suturas impressis, pernitidis, ultimo ^ longitudinis 

 totius a?quante; apertura parva, ovato-rotuuda, labro recto, colu- 

 mella fortiter uniplicata. 



Long. 5, lat. L25 mm. 



Hub. Persian Gulf, Mussandam, 55 fathoms. 



A somewhat stouter species than the allied S. cometes, 

 Melv.j which is more caudate, and subpellucid. I think it is 

 light to place it in the same genus ; by some it might be 

 included in Si/rnola. 



Cingulina secernenda, sp. n. (PI. IV. fig. 17.) 



C. testa minuta. attenuata, oblonga, alba ; anfractibus ad 9, quorum 

 tres apicales, heterostrophi, heves, lacteo-vitrei, C03teris undique 

 uniformiter arete spiraliter carinati et tornati, cariuulis rotun- 

 datis, interstitialiter sub lente alveolatis, supernis duabus, ante- 

 et penultimo tribus, ultimo septem cariuulis praiditis ; apertura 

 oblongo-ovata, peristomate paullulum incrassato, albo, columella 

 omnino simplice. 



Long. 3 - 50, lat. 1 mm. 



Hab. Karachi. 



Very like, superficially, to Oscilla indica, Melv., but 

 wanting the columellar plait. 



An Oscilla occurred, likewise, on the telegraph-cable in the 

 Gulf of Oman, at 43 fathoms, resembling this species, but 

 more elongate than 0. indica, with the same character of 

 tornate wbovl ornamented with spiral carinae, columella 

 strongly once-plicated ; long. 4'75 mm. This we have placed 

 with our 0. faceta f, as probably exemplifying the adult 

 state of that species. The mouth, however, is smaller and 

 rounder, and there are other slight differences ; but nothing 

 can be decided till more specimens are obtained. 



* Clymene, a Xereid, daughter of Oceanus and Tethys, and mother of 

 Phaeton, 

 f Journ. of Malac. vol. xi. 1904, p. 82, pi. viii. fig. 10. 



