237 



NOTE ON THE STOMATELLA BICARINATA, S. BIPORCATA 

 AND S. MARGARITANA OF A. ADAMS. 



By J. K. i.K B. TOMLIN, M.A. 



(Read before the Society, April 6th, 1921). 



Thes?: three species were described and figured in the Monograph 

 of Stoniatellince in the second volume of the Thesaurus^ but do not 

 appear to have since been recognised. As a matter of fact, all these 

 names apply to well-known species, belonging to the genus Gibbiila 

 as understood by Pilsbry in the Mattual of Conchology, vol. xi. 



S. bicarinata A. Adams, I.e., p. 839, pi. 175, f. 39, 40, 1854. 



The type of this species still exists in the British Museum (ex mus. 

 Cuming), and proves to be identical with Gibbula coxi Angas, over 

 which it has priority. 



S. biporcata A. Adams, I.e., p. S39, pi. 175, f. 43, 1S54. 



The types of this species show it to be a Cape shell, the Australian 

 habitat given in the Thesaurus being incorrect. The late Mr. 

 Sowerby redescribed it under the same ^ name, under the impression 

 that Adams' name was only a manuscript one. In the Journal of 

 Concliology, vol. vi., p. 153, erroneously recorded as bifurcafns A. Ad. 



S. marg-aritana A. Adams, I.e., p. 839, pi. 174, f 31 (not 54 as 

 stated in the text), 1854. 

 Also a well-known Cape shell and not Australian, as stated in the 

 original description. It is the same species as Trochus roseus Gmelin, 

 and therefore sinks as a synonym. 



EDITORIAL NOTES. 



Very liearty congratulations to the Honorary Secretary, Mr. J. W. Jackson, on 

 the degree of M.Sc, which has recently been conferred on him by Manchester 

 University honoris causa. 



Mr. Jackson has for some lime past been making a special study of the Brachio- 

 poda, and we ought some time ago to have called attention to his paper thereon in 

 the Natural History Reports of the "Terra Nova " Expedition of 1910. Ten 

 species were obtained, and a new genus Coiiipsothyris is erected for Rhynchonella 

 racovitzic Joubin. 



Another interesting paper of his was issued in the Annals and Magazine of 

 Natural History for last January, '* On the Occurrence of Lusitanian Brachiopods 

 in the Persian Gulf." The specimens were dredged by Mr. F. W. Townsend, off 

 Dabai, and are identified as Terehratulina caput-serpentis L. var. abbreviata nov. , 

 Miihlfeldtia trnncaia L. , type form and var. paiicisiriata nov. Both these specific 

 names are so familiar that it is hardly necessary to point out the extensions of geo- 

 graphical range that this discovery denotes. 



I Marine Shell.s of South Africa, pp. 44, 67. 



