158 PROCEEDINGS OF THE MALA.COLOGICAL SOCIETY. 



versus apicem leviter mucronata, dcindc recta, baud accresecns ; 

 anfractus 11, vix convexi, Ifcves ; sutura angusta; anfractus ultimus 

 brevis, leviter convexus, inferne rotundatus ; apertura ovata ; columella 

 tenuis, leviter contorta ; labvum tenue. Long. 3-50, diam. 0-75 mm. 



A small narrow pellucid species, in which about one-third of the 

 spire is acute, the last four whorls being nearly equal in width. 



Family TROCHID.E. 



19. MiNOLIA (CONOTKOCHUS) STRIGATA, U.sp. PI. XII. Fig. 18. 



Testa conico-turbinata, profunde umbilicata, albida, griseo maculata, 

 plcrumcjue maculis quadratis in flammulis longitudinalibus dispositis ; 

 spira elata, gradata ; anfractus 5-6, conspieue bicarinati, oblique 

 subtilissime striati ; anfractus ultimus subquadratus, tricarinatus, ad 

 basin levissime convexus, radiatim striatus ; umbilicus subcircularis, 

 excavatus, plicis numerosis tenuissimis iustructus ; apertura sub- 

 circularis ; peristoma simplex. Long 5, diam. 5 mm. 



Allied to Conotrochus Sinr/nporensis, Pilsbry, but larger and pro- 

 portionately shorter, with three prominent carina) on the body-whorl 

 and one bordering the umbilicus. 



20. MoNiLEA RorrNDATA, n.sp. PI. XII. Fig. 19. 



Testa globoso-conoidca, crassa, profunde umbilicata, sordide albida, 

 maculis paucis griseis picta ; spira brevis, obtusa ; anfractus 4h, valde 

 convexi, spiraliter lirati, liris numerosis angustis confertis ; sutui'a 

 canaliculata, lira leviter nodulosa marginata ; anfractus ultimus 

 ventricosus, levissime angulatus (supra et infra) ; umbilicus medio- 

 criter angustus, costa crassa tuberculosa marginatus. Apertura fere 

 circularis; labrum crassum, intus baud liratum. Long. 3j, diam. 

 3^ mm. 



The principal character of this little shell is the thick nodulous ridge 

 bordering the umbilicus. 



Family DENTALIIDiE. 



ScnizoDENTALiuM, n.gcn. 



Testa dentaliiformis ; latere ventrali postice scric fissorum longi- 

 tudinaliter excurvato instructo. 



21. ScHizoDENTALiuM rLuiUFissuRATUM, n.sp. PI. XII. Fig. 24. 

 Testa subulata, crassiuscula, postice leviter arcuata, attenuata ; 



pallida, longitudinaliter subtilissime striata, costellis numerosis iu- 

 ajqualibus instructa, circulariter iri-ogulariter rugata, tissuris 2-5, 

 plerumtjue primis (prope apicem) longiusculis, cieteris brevioribus. 

 Long. 64, maj. diam. 7"oO mm. 



Hab. — Hong-kong ? 



The shell is very like an ordinary multicostate Denfalhim, but dis- 

 tinguished by the following remarkable character. In a line with 

 the usual apical notch, there are several slits on the convex 

 side, extending from the summit to about a quarter of the 

 length of tlie sliell. I have three specimens before me, and the 

 dimensions given above are taken from the largest ; it has five 



