f UK NAUTILUS. 141 



P. (Lamelliconcka) circinata of tlie Atlantic can hardly be separated 

 from P. alternata of the Pacific ; Cythereu magdalense Dull is the 

 analogue of C. slrigelliwt Dal!, of the Atlantic fauna; C. rigida 

 Dilhv. is found on both shores; C. multicostata Sowb. is allied to 

 0. listen' ; Chione subrostrata lives on both coasts; forms of C. un- 

 datella often resemble C. cancellata; C. purpurissatu Dall is elosely 

 related to C. puber Val.; C. pulicaria is the analogue of C. intapur- 

 purea of the Atlantic fauna; while C. obliterata Dall "is the an- 

 alogue of C. latilirata Conr., and C. marise Orb. of C. paphia L."- 

 C. W. J. 



RKVISION DKS CYVRJEIDJE DE LA NOUVELLE-CALEDONIE, par 

 Ph. Dautzenberg, Journal de Conchyliologie, Vol. L, pp. 291-384, 

 1902. In this interesting paper the author records about 70 species, 

 and a number of varieties including several which are described as 

 new. The following is a brief review of the new forms : 



CYPRAEA ARGUS var. MINOR, applied to specimens under 55 rnm. 

 in length. 



C. ARGUS var. CONCATENATA, shells with numerous small ocellated 

 spots disposed in small chains, which cross each other more or less 

 regularly ; at the points of intersection the remarkably large rings 

 sometimes transform into brown spots. 



C. CARNEOLA var. PROPJNQUA Garrett (Cat'l Cyprseidse), very 

 short, reflected, approaching in form C. arenosa, dorsal region with a 

 violet ring more or less apparent. 



C. TALPA var. SATURATA. In this variety the three dorsal bands 

 are less clearly defined, the entire shell being tinted with a deep 

 brown. 



C. TABESCENS. 0. rashlei gho.na, C. alveolus, and G. elaiodes are 

 all considered varieties of C. tabescens. 



C. CAUKICA var. PALLIDA. This has the form of var. obscura 

 Rossi ter, but tending to albinism, while var. obscura tend- to 

 melanism. 



C. ARABICA var. ATRA. Tinted with black over the entire dorsal 

 surface. This var. corresponds to the var. nigricans of (/. eglatina. 



C. EGLATINA var. PALLIDA. Based on two shells with very 

 marked tendencies to albinism. 



C. IIISTRIO var. LUCTUOSA. This presents exactly the same ex- 



