1873.] LAND AND MARINE SHELLS. 183 



3. Helix (Trochomorpha) juanita, n. sp. (Plate XX. fig. 3.) 



Shell widely and deeply umbilicated, depressedly conoidal, mode- 

 rately thin, shining, obliquely sculptured with irregular close raised 

 strife, dark chestnut-brown, with a narrow yellowish-green band at 

 the periphery and a broad band of the same colour surrounding and 

 including the umbilicus ; spire convexly conoidal ; whorls 6|, slightly 

 convex, the last angled at the periphery ; aperture oblique, truncately 

 oval ; peristome white, the margins thin, converging, slightly ex- 

 panded, the right somewhat flexuous, the basal a little thickened. 



Maj. diam. 12, min. 11 ; height 6^ lines. 



Hab. Solomon Isles. 



4. Helix (Angasella) phillipsiana, n. sp. (Plate XX. 

 fig. 4.) 



Shell deeply umbilicated, depressed, rather thin, obliquely plicately 

 striated and finely granulated, brownish white ; spire slightly raised ; 

 whorls 4^, convex, the last rounded, descending in front, a little 

 constricted behind the lip ; aperture diagonal, subcircular ; peristome 

 nearly continuous, expanded, and slightly reflexed, the margins 

 united by a thick callus. 



Maj. diam. 6|, min. diam. 5\ ; alt. 3J lines. 



Hab. Neighbourhood of Arrowie, interior of South Australia. 



This species is related to H. cyrtopleura, Pfr., from the same 

 locality ; but it is smaller, has a narrower umbilicus, is less discoidal, 

 and the surface is granular, besides being plicately sculptured. 



5. Pectunculus gealei, n. sp. (Plate XX. fig. 5.) 



Shell solid, triangularly ovate, ventricose, equilateral, pale yellow- 

 ish brown, mottled here and there with reddish brown ; valves 

 radiately and strongly ribbed ; ribs rounded, transversely striate, and 

 towards the base imbricately nodulous, the interstices excavated and 

 transversely striated ; umboes central, tumid, and a little incurved ; 

 cardinal area deep and somewhat triangular ; posterior side rather 

 straight ; anterior side subangulate, with a distinct lunular area, on 

 which the sculptured ribs are smaller and less prominent ; ventral 

 margin strongly arcuate, dentate within ; posterior adductor scar 

 supported by a prominent thickened callosity ; interior white. 



Long. 18, alt. 18, lat. 14 lines. 



Hab. Dredged off Port Macquarie, New South Wales. 



This remarkable shell bears a strong external resemblance to 

 certain species of Cardium, owing to the imbricately nodulous cha- 

 racter of the ribs, and to its possessing a defined lunular area. 



6. Limopsis loringi, n. sp. (Plate XX. fig. 6.) 



Shell very solid, triangularly orbicular, equilateral, somewhat 

 tumid, white, more or less tinged with rose-colour ; valves concen- 

 trically ridged, the ridges closely striate, furnished next the margins 

 with a pale brown epidermis projecting in a fringe beyond them ; 

 umboes central, prominent, and approximating ; dorsal margin on 



