28 



A REVIEW OP THE VOLUTIDAE 



compressed nodules on the keel of the 

 shoulder, which is slightly concave. Last 

 whorl with about eight nodules. Body whorl 

 Inflated at the middle, but much contracted 

 below. Fascicle flattened. Inconspicuous, 

 very slightly curved, and but little raised. 

 Suture not deep. Aperture high, much nar- 

 rower than in A. arabica. Outer lip thick- 

 ened, rounded, and outwardly reflexed, es- 

 pecially above the shoulder where it joins 

 the body whorl. Color, yellowish-white,- 

 ornamented with chestnut colored, zig-zag 

 lines, becoming heavier at regular inter- 

 vals, forming five bands on the body whorl; 

 one just above the shoulder and four equal- 

 ly disposed below. Some specimens are en- 

 tirely covered and others partially with a 

 dark, reddish-brown coating. Spire high, 

 conic, its height equal to about half the 

 height of the aperture; columella vertical; 

 produced to a sharp point below; with five 

 strong and nearly equidistant plaits. 

 Total absence of any expansion of the cal- 

 lus on the columella, which in A. arabica 

 forms an extended, flattened plait with a 

 clean, free edge. In the case of juvenile 

 A. arabica, this plait is not always well 

 developed, but in all the specimens exam- 

 ined of A. Jaculoldes the plait is wanting. 

 The inner lip spreads as a thin glaze 

 broadly over the body whorl, right to the 

 base of the columella, and finishes about 

 the center of the faclole, but not abrupt- 

 ly, and without leaving any defined ridge. 



Alcithoe johnstoni Powell 1928 

 (Unflgured) 



Alcithoe johnstoni Powell, Trans. New 

 Zealand Inst., vol. 59, P- 363, 1928. 

 Powell: Shell Fish New Zealand, p. 81, 

 species 1083, 1937. 



Alt. 169, diam, 65 mm. 



Hab. Off Cuvier Island, New Zealand, in 

 kk fathoms. 



Shell very large, elongate, inflat- 

 ed below. Whorls eight and one-half. Pro- 

 toconch scaphelloid, moderately large, of 

 two and one-half smooth whorls. Post- 

 nuclear spire-whorls angled at center and 

 prominently nodulous. Penultimate whorl 

 with eleven strong laterally compressed 

 nodules. Shoulder sloping slightly con- 



cave. Body-whorl large, inflated, smooth 

 and devoid of nodules, merged into fagciole 

 without any defining ridge. Spire rather 

 short, less than half height of aperture. 

 Aperture long, expanded at center, contract- 

 ed above and below. Anterior siphonal 

 notch shallow. Outer lip thickened and re- 

 flexed, uniformly broadly arched, ascend- 

 ing over half height of penultimate whorl. 

 No projecting callus plate on columella, 

 which is straight,, tapering to a sharp 

 point below, with five strong, oblique, 

 plications. Inner lip spread as a thin 

 glaze broadly over body- whorl. Color pale 

 pinkish-buff, covered with a network of 

 reddish-brown zig-zag lines, becoming heav- 

 ier and blotched at regular intervals, 

 forming definite spiral bands, two on spire 

 whorls, four on body-whorl. Parietal cal- 

 lus and interior of aperture uniform pink- 

 ish-buff. 



Holotype in Powell collection and 

 two specimens in the collection of Dr. E. 

 N. Drier, Auckland, 



This species is named In honor of 

 Captain Fred Johnston of S. S, "Thomas 

 Currell" who obtained the specimens. It 

 resembles _/acuZo ides in form of spire and 

 columella but differs in the smooth in- 

 flated body-whorl and broadly arched outer 

 lip. 



Alcithoe kreuslerae Angas I865 

 (Plate 9, Figure 73) 



Alcithoe kreuslerae Angas, Proc. Zool. Soc. 

 London, I865, p. 55, plate 2, fig. 5 

 (or 5?). Sowerby: Thes. Conch., vol. 

 5, 2nd suppl., p, 299, p:^ate 16 (Thes. 

 plate 515), fig. 150. Tryon: Man. 

 Conch., vol, 4, p. 94, plate 30, fig. 

 124, 1882, 



Alt. 90, diam. 40 mmi or less. 



Hab. Gleneld, near Adelaide, South Aus- 

 tralia; Lobster pots at Encounter Bay. 



Shell of medium size; pale reddish- 

 yellow, with three bands of orange-brown 

 maculations; pllcately nodulous on angula- 

 tions; spire turreted, one-third length of 

 shell; whorls smooth, angulated in the mid- 

 dle, outer lip simple; columella scarcely 

 straight, four folds. 



