EAST COAST MARINE SHELLS 



123 



CANTHARUS AURITULA Link. Shell short, sol- 

 id, ; about eleven strong ribs upon last 

 whorl, also carried to spire; also inter- 

 mediate threads which are cut by the growth 

 lines; whorls high, shouldered; strong nod- 

 ules Just below suture; outer lip swollen 

 behind with a prominent tubercle where a 

 sutural series ends; strong deep entering 

 plait on opposite side; color brownish, 

 clouded with white. Length 2S mm. 



Allied to T. tincta this form is 

 shorter and more solid; the shoulder is al- 

 so more developed, while the strong tuber- 

 cle on upper outer lip is a characteristic 

 feature. 



PI. 47, Fig, 11 



Florida; West Indies 



GENUS PROS Montfort 1810 (LIGHT SHELLS) 



Spire elevated; base notched; col- 

 umella with folds at base; operculuc claw- 

 shaped. 



PHOS CANDEI Orbigny. Whorls nine to ten, 

 rounded; numerous slightly curved longitudi- 

 nal ribs (about sixteen on last whorl) 

 crossed by threads of three sizes; outer 

 lip thick, with varix extending backward, 

 sometimes varices scattered over shell; 

 notch near base of lip well marked as in 

 Strombus; plaits on columella; color yel- 

 lowish white to brownish, with faint broken 

 bands. Length 1 inch. 



It lives in 25-180 fathoms. One 

 beach shell was taken at Palm Beach. 



PI. 46, Fig. 20 



Cape Hatteras, North Carolina to 



West Indies 



BAILYA PARVUS C. B. Adams. Shell small, 

 whorls about eight, separated by deep su- 

 ture; eleven distinct, elevated, rounded 

 longitudinal ribs, crossed by riblets; fine 

 revolving threads between ribs making sur- 

 face finely reticulate; varix behind lip 

 very high and strong; notch of lip feeble; 

 color pale brownish, knobs darker; white 

 band below middle of body whiorL. Length 

 16 ram. Now transferred to Family Cymatiidae, 



Depth range 2-15 fathoms. 



PI. 46, Fig. 21 



Charlotte Harbor, West Indies to 



Barbados, West Indies 



BAILYA PARUVS INTRICATUS. Length 13.2 

 mm. 



PI. 68, Fig. 6 

 Florida; West Indies 



GENUS ENGINA Gray 1839 



Shell thick, nodulous; lip heavy, 

 toothed inside; operculum claw-shaped. 



ENGINA TURBINELLA Kiener. Whorls seven; 

 strongly ridged at periphery and tapering 

 from this to base; row of low knobs Just 

 above suture and continuing around periph- 

 ery of last whorl; surface with delicate 

 revolving threads which cross growth lines 

 and forming fine reticulations; aperture 

 somewhat narrow and extended below; six to 

 eight knobs within outer lip, the upper 

 separated from the others; color black or 

 reddish broTi-n, nodules often white. Length 

 11 mm. 



PI. 47, Fig. 8 



Key West, Florida; West Indies 



GENUS NASSARIA Link 1807 



SUBGENUS NASSARINA Dall 1889 



NASSARINA GLYPTA Bush. Length 4.5 mm. 

 Range 14-63 fathoms. 



PI. 65, Figs. 5, 5a 



North Carolina to Florida Keys 



Family Neptuneldae 



A group which is largely boreal in 

 distribution. The species mostly lack col- 

 or except in the genus Busycon. The forms 

 are highly diverse in shape and sculpture, 

 the individual species themselves being ex- 

 cessively variable. 



GENUS NEPTUNEA Roeding 1798, Chrysodomus 

 Swain. 1840 (NEPTUNE SHELLS) 



Mostly colorless shells with a 

 light brown or yellowish epidermis. 



NEPTUNEA DECEMCOSTATUS Say. Many -Keeled 

 Neptune. Shell oval, contracted above and 

 below; ashy-white surface; about ten round- 

 ed reddish-horn colored keels upon lower 

 portion of body whorl and two upon upper 

 portion of whorls, the keels evenly spaced 

 but one larger than the others; between the 

 ribs and suture a broad excavated shoulder; 

 umbilicus imperfect; interior white, 

 grooved with brown near edge; operculum 



