1901.] MOLLUSKS FROM THE PERSIAN GULF. 371 



A small ochraceous Scaliola, much agglutinated, likewise occurs 

 with the other species ; it may be only a variety, but has a distinct 

 appearance. 



Fain. Litiopid.f. 



LlTIOPA TENXEOSA A. Ad. 



P.G. Gulf of Oman. 



M.C. Gwadiir (W. T. Blanford), with var. minor n., an sp. 

 propr. ? 



Litiopa (Alaba) bla>~fordi A. Ad. 



I. Bombay (Dr. F. Stoliczka, H. F. Blanford). Not in the 

 Abercrombie collection. 



Litiopa (Alaba) rectaxgitlata Craven. 

 I. Bombay (Abercrombie). 



Litiopa (Diala) leithi Sm. 



I. Bombay (Abercrombie). Probably inhabits brackish water, 

 with many spp. of Stenothi/ro? and Assiminiece. 



Litiopa (Diala) semistriata Phil. (=macula Ee'cluz). 

 P.G. Gulf of Oman, near Maskat. 20 fathoms. 

 I. Bombay (Dr. F. Stoliczka). 



Litiopa (Diala) sulcifera A. Ad. 



P.G. Gulf of Oman, near Maskat, with the preceding. Also 

 recorded by Mr. W. T. Blanford. 



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



Litiopa (Styliferi>'a) fulta B. Wats. (Alaba). 



P.G. Gulf of Oman, near Maskat. 



The specimens are worn, but both in coloration and sculpture 

 agree with description and figure (Bep. Challenger Exped. vol. xv. 

 p. 571, pi. xlii. fig. 5). 



Litiopa (Styliferixa) sayignyi Issel. 



P.G. Gulf of Oman, Maskat (Dr. F. Stoliczka, W. T. Blanford). 



Argyropeza l , genus novum. 



Testa parva, gracilis, fusiformis, tenuis, nitida vitrefacta, albo- 

 cinerea vel einereo-ttraminea ; anfractut 10, quorum tres apicales, 

 lanft$, part/if brunnei vel straminei, eceteri multum apud suturas 

 impretri, ventricori, bicarimati, carina tpiraliter arete >t regu- 

 lariter nodtiloeo-gemmatai^ uUimus anfractut eateroe exasgxians, 

 rinatus, carina inferior planatut^ d\ vnde <"/ batim tpiraliter 

 lirntiis ; apertura ovata ; inristoma tenue, sinuatum, 2>aullum 

 t ff'usum ; columella ad basim subprodiida. 



1 dpyvfj67Tt£a, silver-fuut, the Homtfio epithet of Thetis. 



24* 



