148 Dr. J. C. Melvill on Marine Mollusca 



aristcei, elspethcp, and others. It differs from all in its 

 compact form, brown colour, and slightly expanded lip. 



Fossarus eutorniscus*, sp. n. (PI. V. fig. 21.) 



F. testa perrninuta, solidiuscula, sordide etraminea, ovata ; an- 

 fractibus 4, quorum duo apicales bulbosi, albi, laevissimi, peunul- 

 tiino 2- ultimo 5-carinato, videlicet, carina prima infra, juxta 

 suturas, secunda et tertia ad peripheriam, quarta et quinta circa 

 umbilicum versus basiu, interstitiis spiraliter minute ad profuude 

 punctatis, umbilico anguste profundo ; apertura rotundata ; peri- 

 stomate incrassato, rotundo, contiuuo ; margiue columellari 

 simplice. 



Alt. 1-50, diam. 1*50 mm. 



Hab. Karachi. 



Probably the smallest species of the genus, of which we 

 have only seen five or six examples, varying very slightly in 

 size. Though so minute, the sculpture is most elaborate, 

 especially of the body-whorl, which possesses five spiral keels, 

 the first just below the sutures, second and third at the peri- 

 phery, fourth and fifth round the umbilicus ; these keels are 

 very incrassate, proportionately speaking, and the interstitial 

 spaces between the second and third and fourth and fifth 

 keels are spirally, regularly, deeply punctate. Of the same 

 general form as F. elegans f, Verrill & Smith, from U.S.A. 

 Atlantic Coast, but much smaller. 



Fossarus (Couthouyid) cancellarius, sp. n. 

 (PI. V. tig. 22.) 



F. testa parva, alba, tenui, ovato-oblonga ; anfractibus 6, quorum 

 apicales 2 vitrei, lseves, mamillati, ceteris 4, ad suturas multum 

 impressis, ventricosulis, undique minute et pulcherrime regu- 

 lariter cancellatis, interstitiis quadratulis, ultimo anfractu ca3teros 

 permultum exsuperante ; umbilico perparvo, angustissimo ; aper- 

 tura ovata, peristomate tenuissimo, i'ragili, columella simplice, 

 obliqua. 



Long. 3*50, lat. 2 mm. (sp. max.). 



Hab. " Persian Gulf." 



A very fragile, delicate shell, six-whorled, these being 

 swollen and ventricose, the whole surface beautifully minutely 

 cancellatc ; outer lip thin, slightly effuse ; aperture oval, 



* ev Topviaicos, well-turned. 



t Trans. Connect, Acad. v. p. 522, pi. xlvii. fig. 38 (1882). 



