84 Quarterly Journal of Conchology. 



Fischer, P. — Des anomalies de I'opercule dans les genres Vol- 

 utharpa et Buccitium. ( On the anomalies presented by the 

 opercula of Volutharpa and Buccinuiu.), pp. 112 — 114. 



Of the specimens of Volutharpa ampullacea Middendorf, found 

 in Behring's Straits, the majority have no operculum, but about 

 10 per cent bear traces of that organ, in the shape of a smooth 

 and whitish surface, which is strikingly visible against the slaty 

 black color of the rest of the foot, whilst 15 per cent have a 

 well developed operculum, and moreover at an advanced period 

 a sort of second operculum is formed underneath the first. 

 Dr. Fischer compares these facts with Mr. Jeffreys' observations 

 on the double and triple opercula of Buccinum tindatum. 



Gloyne, C. p. — Notes supple'mentaires sur les Mollusques 

 terrestres de la Jamaique (Supplementary notes on the terres- 

 trial Moilusca of Jamaica), pp. 115 — 126. 



The -author had given a first list of the land-shells of Jamaica 

 collected by himself in Vol. XX. of the Journal (pp. 26 — 47.) 

 He now supplements it by a second list, containing additions, 

 corrections, and species, which though not collected by him- 

 self, he can give the localities from trustworthy sources, pre- 

 facing his paper by a few general geographical remarks. 



There are 62 additional species enumerated, and one new 

 species — Adamsiella irrorata, Gloyne, from Brownstown is des- 

 cribed, as well as a new \'a.viety pall/da oi Adamsiella Gray ana Pfr. 



Hidalgo, J. G. — Supplement au Catalogue des Coquilles ter- 

 restres recueillies dans I'Amerique meridionale ( Supplement to 

 the Catalogue of Land-shells collected in South America) pp. 127 

 —131- 



In the first number of the Journal for 1870 the author had 

 given a list of the land-shells collected in South America by 

 the Spanish naturalists of the Pacific Expedition ; He now pub- 

 lishes a supplement with additional species and corrections. 



The following species are figured, Succinea Peruviana, Phillipi, 

 (PI. vii. f I ); Streptaxis uberiformis, Pfeiffer, (f 8); Bulimus 

 scalarioides, Phil, (f 4); B. Atacamensis, Pfr. (f 5); B. Ochseni, 

 Dunker, (f. 2); Pupa Pazi, Hidalgo, (f 7); and Bulimus Colmeiroi 

 Hid. (f. 3); Helix Baezensis, Hid., should take the name Helix 

 Cuzcana, Phil. Bulimus albieans, Broderip, is considered a small 

 sized variety of B. albus, Sowerby. The shell previously refer- 

 red to Bulimus Gibbonius, Lea, is made a separate species, B. 

 Ju?nenezi, Hid. B. Montevidensis, Pfr. should be B. sporadicus, 

 Orbigny. Cyclotus Fischeri, Hid., is now considered a variety of 

 C. giganteus, Gray; 211 species in all were collected by the Span- 

 ish naturalists, 29, of which were new. 



