94 Mr. J. C. Melvill on the 



subpellucid consistency; and, lastly, in the close and fine 

 punctuation of the interstices, A. fulva^ Ad., having sulci 

 quite plain and smooth throughout. 



Odostomia eutropia *, sp. n. (PI. I. fig. 14.) 



0. testa ovato- vel oblongo-fusiformi, Candida, perlsevi, nitida ; 

 anfractibus 6-7, apicali heterostropho, lacteo, bulbifortni, caeteris 

 profunde ad suturas canaliculatis, paullum gradatis, nequaquam 

 ventricosis, ultimo spiraliter ad peripheriam unicarinato, alitor 

 Isevissimo ; apertura ovata, intus spirali-striata ; labro vix, praeter 

 ad basim, incrassato ; columella fortiter uniplicata. 



Long. 5, lat, 2 mm. (sp. maj.). 

 „ 3, „ 1"25 mm. (sp. min.). 



Hah. Karachi ; also in mud at 25 fathoms, lat. 26° 23' N., 

 long. 54° 53' E. 



Shell either ovate or oblong-fusiform, bright shining white ; 

 whorls six or seven, the apical being heterostrophous, milky 

 white and bulbous ; the remainder are deeply canaliculate at 

 the sutures^ slightly turreted, but not in the least swollen ; 

 the last whorl at the periphery is once sharply carinate (in 

 one or two specimens the keel is not so plainly seen) ,• the 

 aperture is oval, within spirally striate, the outer lip is hardly 

 thickened except towards the base, the columella being more 

 strongly plaited. 



This is the species mentioned (Proc. Mai. Soc. vol. ii. 

 p. 113) as having been noticed at Bombay, and descriptions 

 drawn up, when the specimens unfortunately got mislaid, 

 naturally therefore precluding publication. Many examples 

 have been found at Karachi by Mr. Townsend, showing some 

 variety in both size and distinctness of peripherial carination. 

 0. carinata^ A. Ad. (Proc. Zool. Soc. 1873, pi. xxiii. fig. 4), 

 has also occurred in the same locality ; it is conspicuous for 

 a thickening below the sutures, thus forming a double angle 

 to each whorl. It does not seem a monstrosity. 



Pyrgulina epentromidea^ sp. n. (PI. I. fig. 15.) 



P. testa ovata, crystallina, tenui, apice heterostropho, pervitreo, Isevi ; 

 anfractibus quiiique, gradatis, apud suturas multum impressis, 

 undique longitudinaliter costatis, costis delicatis, vitreis, inter- 

 stitiis laevibus, ultimo anfractu costis ad basim imam conspicuis, 

 labro tenui ; apertura ovata, intus striatula ; columella fortiter 

 uniplicata. 



Long. 2, lat. 1"30 mm. 



* tv, rpoTvis, with conspicuous angle or keel. 



