A REVIEW OP THE VOLUTIDAE 



65 



Hab. Prom Cape Fear, North Carolina, south 

 and west to Key West, Florida, In 40 to 

 509 fathoms. 



A portion of Ball's description 

 follows : 



Shell rather small, solid, slender, 

 white, brownish plum color, or spirally- 

 banded with whitish and claret color, rare- 

 ly square-spotted in spiral series; whorls 

 moderately full, five and one-half besides 

 the nucleus; sculpture of fine close dis- 

 tinct spiral threads covering the whole 

 surface except the anterior part of the 

 last whorl, where they gradually give way 

 to much stronger and more distant threads, 

 which in some specimens wind into the aper- 

 ture, as if simulating small plaits; the 

 nucleus is nearly flat, whitish, consisting 

 of one whorl rising a little above the pos- 

 terior edge of the first post-embryonic 

 whorl, and having a central projecting in- 

 itial point, but less prominent than in 

 V. robusta. The suture Is appressed and in 

 the early whorls a little marginated; the 

 first whorl is only strongly spirally stri- 

 ated and convexly rounded; the succeeding 

 whorls have the periphery rippled by a suc- 

 cession of (on the third whorl 22) small 

 waves, with their anterior slope steeper 

 than the other, and which, in some speci- 

 mens, extend to the last third of the last 

 whorl before becoming obsolete, though ceas- 

 ing sooner in others; these waves are gen- 

 erally confined to the periphery and vary 

 in strength and number In different speci- 

 mens, one specimen having only eighteen on 

 the third whorl; the color varies from yel- 

 lowish white to a ruddy brown with a sug- 

 gestion of purple in it, which is usually 

 stronger at the suture along the pillar and 

 outer lip, and especially toward the end of 

 the canal. The fresh specimens nearly all 

 show a tendency to spiral banding; one beau- 

 tiful but half-grown specimen has six nar- 

 row pale bands, the second from the suture 

 being on the periphery, with the much wider 

 interspaces of a brownish claret color; 

 this fades slightly, but the white ones do 

 not seem faded. The outer lip is sharp 

 with a dark margin, the throat whitish, the 

 pillar callus yellowish- white; there are, 

 in the very young, four plaits, of which 

 the first and third, counting backward, are 

 fainter than the other two; in adult shells 

 rarely are more than two visible and those 

 are quite faint; there is only a slight 



glaze on the body whorl; in the adults the 

 nucleus and first whorl are generally so 

 worn as to resemble one of the common round 

 mammillate tips seen normally in many 

 Volutes, 



This species is entirely without 

 trace of an operculum, opercular gland, or 

 pad. 



Aurlnla junonia (Hvass) 1795 

 (Plate 6, Figure 53) 



Valuta Junonia Hwass, in Chemnitz' Conch. 

 Cab., 11, 1795, p. 16, pi. 177, figs. 

 1703, 1704. Lamarck: Ann. du Mus., 7, 

 p. 70, 1811. Swainson: Exotic Conch., 

 2nd ed., p. 22, pi. 33, January, 1835. 

 Sowerby: Thes. Conch., vol. 1, p. 197> 

 pi. 49, fig. 44, 1847. Reeve: Conch. 

 Icon., pi. 20, fig. 50, 1849. 



Valuta (Aulica) junonia Crosse: J. de C, 

 19, p. 285, 1871. Tryon: Man. Conch,, 

 vol. 4, p. 90, pi. 26, fig. 67, 1882. 



Scaphella junonia Swainson: Malac, p. IO8, 

 1840. Ball, Bull. Mus. Comp. Zool., I8, 

 p. 148, pi. 34, figs. 5, 5c, 5d, 5e, 

 1889; Trans. Wagner Inst. 3, p. 79, pl. 

 7, fig. 9, 1890. 



Maculopeplum junonia Ball, Nautilus, I9, 

 number 12, p. l43, April, 1906; Smith. 

 Misc. Coll., vol. 48, part 3, number I663, 

 "A Review of the American Volutldae," 

 p. 370, 1907. Perry: Marine Shells of 

 S.W, Florida, p. 155, pl- 36, fig. 241, 

 1940. Smith, East Coast Marine Shells, 

 p. 128, pl. 50, fig. 1; pl. 1, fig. 4, 

 1941. 



Alt. (average) 85 mm. Apparently, the 



largest specimen known is in the writer's 



collection, and measures l4l mm. in 

 length. 



Hab. From off Cape Lookout, North Carolina 

 in 22 fathoms, south to Cape Sable; 

 Florida Keys, Sanlbel Island, north to 

 off Tarpon Springs. This is the only 

 species of the genus that lives in shal- 

 low water, but not between tide marks. 



There are four post -nuclear whorls 

 in this, the largest of recent Aurlnias . 

 First whorl ornamented with riblets extend- 

 ing from suture to suture, these surface^ 

 slightly broken by spiral sculpture; the 

 spiral sculpture upon subsequent whorls 



