IGO Mr. E. A. Smith on Mollusca from the 



longit. tolius h adaequans, intus I'usccsccns ; labrura tenue, supra 

 late scd baud profunde sinuatum, ad medium arouatim prominens ; 

 columella laivis, eallo tenui pallide corneo circumscripto induta ; 

 canalis brevis, latus, obliquus, subrecurvus. 

 Longit. GO mm., diam. 27 ; apertura cum canali 29 longa, 13 lata. 



Hab. Station 249, S.W. of Cape Comorin, 1022 fath., 

 green mud and Globigerina ooze; also Station 318, off W. of 

 Ceylon, 1085 fatli. 



This species differs from P. mirahUe, Smith, in having the 

 whorls angulated in the middle, in the finer spiral lirae, more 

 slender costse, &c. The ribs are nineteen in number upon 

 the body-whorl and only slightly developed in the concavity 

 or upper part of the whorls. 



A specimen from Staticm 318 has only sixteen costse and 

 the aperture is Avhite within. 



Animal apparently without eyes or operculum. 



Named after Mr. S. Pace, mIio kindly reported upon the 

 soft parts of the genus Pont'iothainna (Journ. Linn. Soc, 

 Zool. 1903, vol. xxviii. pp. 455-462, pi. xlii.). 



Clavatula navarchus (Melvill and Standeu). 



Pleiirotoyna {Gemmula) navarchus, Melvill and Standen, Ann. & Mag. 

 Nat. Hist. 1903, vol. xii. p. 310, pi. xxi. fig. 15. 



Hah. Station 258, West of Travancore, 102 fath., sand 

 ('Investigator') ; Per>ian Gulf, 140 fath. [M. ^- S.). 



Several specimens rather smaller than the type, now in 

 the British Museum, but otherwise the same. The operculum 

 is rather thick, semioval, having one side straight and the 

 outer margin curved. The nucleus is at the middle of the 

 straight edge, the outer surface being finely concentrically 

 striated and the underside with a raised edge, with some 

 concentric wrinkles in the middle. In general form the 

 shell bears a resemblance to C. bii)uirginata, Lamarck, and 

 C. diadema, Kiener. 



Pleurotoma carinata, Gray. 



F'lcnirotoma carinata, Gray; Smith, Aim. i^' Mag. Nat. Hist. 1896, 

 vol. xviii. p. 3(J8. 



Hab. Stations 328, 329, S. of Lower Burmah, Gl and 

 46 fath. 



Pleurotoma congener, Smith. 



^ler, Smith, Ann. & Mag. Nat. I 

 figs. 4, 5. 



Hab. Station 258, W. of Travancoi-e, 102 fath, sand; 



rUiirotojna co72(jener, Smith, Ann. & Mag. Nat. Hist. 1894, vol. xiv. 

 • p. 160, pi. iii. figs. 4, 5. 



