1901.] MOLLUSKS FROM THE PERSIAN GULF. 365 



FossARUS (Couthouyia) appresstjs G. Nevill. 

 P.G. Larah. Tumh I. (W. T. Blanford). 



EossARUs (Couthouyia) reticulatus A. Ad. 



Var. delicatula Gr. Nevill. 

 I. Bombay (Rev. S. B. Fairhmik). 



FossARUs (Couthouyia) solutus G. Nevill. 

 M.C. Gwadur (IF. T. Blanford). 



FossARUs (Couthouyia) styliferinus G. Nevill. 

 I. Bombay. 



FossARUS (Couthouyia) subreticulatus G. Nevill. 

 P.G. Tumb I. {W. T. Blanford). 

 M.C. Gwadur (W. T. B.). 



I. Bombay {Rev. S. B. Fairbank). 



FossARus (Conradia) adamsiana G. Nevill. 

 P.G. Gulf of Oman {W. T. Blanford). 



FossAKUs (Conradia) doliaris a. Ad. 



Var. minor G. Nevill. 

 P.G. Tumb I. ( W. T. Blanford). 



I. Bombay (Rev. S. B, Fairbank • also A. Abercrombie). 



Fam. EissoidjE. 



EissoA (Apicularia) charope, sp. n, (Plate XXII. fig. 8.) 

 E. testa vix rimata, rotundo-ovata, Candida, nitida, calcarea; 

 anfractibus 5, quorum apicales duo loaves, albi, caiteris gradatis, 

 multum apud suturas impressis, undique acutlcostatis, costis 

 fere rectis, infra, juccta suturas noduliferis, nitidis, ad 

 ultimum circa sedecim, ad basim continuis, sed obscuris, inde 

 fortiter spiraliter sulculosis ; apertura rotunda, labro tenui ; 

 columella tenui, simplice. 

 Long. 1*75, lat. 1 mm. 



Hab. Gulf of Oman, lat. 24° 05' N., long. 57° 35' E. 205 

 fathoms. 



Similar to the R. xantJiias and R. pyrrMas Watson, dredged off 

 Culebra I., W. Indies, during the ' Challenger ' Expedition. Our 

 species is, hov^ever, a little smaller than either, and possesses more 

 ribs, which are sharp and more angled at the upper part, the 

 granuled spiral row of shining nodules being conspicuous. 



EissoA (Apicularia) versoyerana Melv. 



I. Karachi, Amongst muddy rocks at low tide, common 

 Bombay (Abercrombie). One of the most characteristic of the 

 smaller mollusks of that locality. 



