A REVIEW OP THE VOLUTIDAE 



Alt. 25 mm. 



Hab. Greenland coast in 15-200 fms.; Well- 

 ington Channel; Iceland; Spitzbergen; 

 Plnmark, in 80-100 fms. (Sars); also in 

 the Pleistocene of Britain. 



Surface of shell smooth, except for 

 a few course spirals near the canal. 



Volutomltra alaskana Ball 1902 

 (Plate 26, Figure I80) 



Volutomltra alaskana Ball, Nautilus, vol. 

 15, p. 102, 1902. 



Alt. 44, diam. maj. 17-5 nun- 



Hab. In southern and eastern parts of 

 Bering Sea and the Aleutians in 60 to 

 85 fms., muddy bottom and southward in 

 constantly deeper water, following the 

 temperature of 39 degrees Pahr. to a 

 point off San Diego, California, in 822 

 fms. (Ball). 



Ball's description is as follows: 

 Shell fusiform, with about six mod- 

 erately convex whorls; suture distinct, 

 surface minutely spirally striated, covered 

 with an olivaceous periostracum over a 

 white or yellowish shell; aperture longer 

 than half the total length, with a rather 

 wide canal, callous pillar and body, in 

 the adult, and simple outer lip; the canal 

 with a well-marked siphonal fasciole, and 

 is slightly flexuous; plaits normally four, 

 rarely three or five, strong and rather 

 distant; nucleus almost always eroded. This 

 species differs from V. irfSnlandlca in its 

 much greater size, less rufous color, and 

 pervasive fine spiral sculpture, but other- 

 wise is very similar. It was first dredged 

 by the writer (Ball) in the eastern Aleu- 

 tians, and has since been obtained by the 

 U.S. Pish Commission (Ball). 



Apparently heretofore unfigured. 



Genus MICROVOLUTA Angas 1877 



Mtcrovoluta Angas, Proc. Zool. Soc. 1877> 

 p. 34. 



Genotype: Mtcrovoluta australis Angas. 



_6a 



Range: Australia and New Zealand. 



Microvoluta australis Angas 1877 

 (Plate 3, Figure 26) 



Mtcrovoluta australis Angas, Proc. Zool. 

 Soc. London, 1877, p. 35, T. 5, fig. 2, 

 Powell, Shell Fish New Zeal., p. 81, 

 1937. Tryon: Man. Conch, vol. 4, p. 

 105, pi. 31, figs. 151-152, 1882. 



Valuta minima Sowerby, Thes. Conch., vol. 

 5, 2nd suppl., p. 300, pi. 16 (Thes. 

 pi. 515) figs. I52A and B. 



Alt. 9, diam. 3-75 mm. 



Hab. Port Jackson Head, Australia in 25 

 fathoms (type locality). 



Shell very small, fusiform, solid, 

 shining white; spotted and flamed with 

 double bands of chestnut color; spire ele- 

 vated, apex obtuse; five and one-half con- 

 vex whorls; columella with four plaits. 



Microvoluta biconica 



(Murdoch and Suter) I906 



(Plate 3, Figure 28) 



Voluta biconica Murdoch and Suter. Suter: 

 Man. N. Zeal. Moll. p. 363, pl- I8, 

 fig. 4. Powell: Shell Pish of New Zeal., 

 p. 81, sp. 1091, 1937. Finlay: Trans. 

 New Zeal. Inst., vol.. 59, P- 242, pl. 43, 

 figs. 13, 15, 1930, E. A. Smith: Brit- 

 ish Antarctic "Terra Nova" Exp. 1910, 

 vol. 2, no. 4, p. 85, 1915. 



Alt. 5, diam. 2.8 mm. 



Hab. Off Great Barrier Island, in 110 



fathoms; off Cuyier Island, in 37 fath- 

 oms; Snares, in 50 fathoms; near North 

 Cape (Terra Nova Exp.); in the Castlecliff 

 Upper Pliocene deposit; all records in 

 the New Zealand area. 



Shell very small, white, often with 

 broad zig-zag lines continued down from 

 fulvous color on nodules of first half of 

 body whorl; whorls five; nucleus of one and 

 one -half whorls. 



