136 



EAST COAST MARINE SHELLS 



PI. 52, Fig. 3 

 Florida; West Indies? 



GENUS LORA 



Shell small, fusiform In shape; 

 spire elevated; canal short; outer lip 

 lightly notched. These little mollusks are 

 Inhabitants of cool water and occur mostly 

 off the coast of New England and Canada. 



LORA BICARINATA Couthouy. Shell small, 

 brownish or purple with usually a darker 

 Interior; whorls six, the last keeled above; 

 whorls of spire keeled In centers; last 

 whorl shouldered by continuation of same 

 keel; fine axial and spiral striae forming 

 a decussated surface. Length 5-10 mm. 

 Depth range 6-100 fathoms. 



It has been taken at extreme low 

 tide In Casco Bay, Maine but is more often 

 obtained in fish stomachs. 



PI. 52, Fig. 18 



PI. 69, Fig. 15 



Labrador, to New York 



LORA CANCELLATA Mlghels and Adams. Whorls 

 seven, convex; suture well marked; apex 

 acute; aperture narrow, lip thin and crenu- 

 lated by the spiral sculpture terminations. 

 Length 11 mm. 



A very graceful little shell which 

 has been taken from haddock and other fish 

 stomachs. Depth range 7-S12 fathoms. 

 PI. 47, Fig. 14 

 Labrador to Massachusetts 



LORA HARPULARIA Couthouy. Whorls seven to 

 eight, flattened above and forming a shoul- 

 der; about sixteen oblique rounded axial 

 ribs and many spiral lines; flesh color, 

 which is constant. Length 10-15 mm. 



PI. 69, Fig. 17 



Labrador to off Block Island, 



Rhode Island 



LORA INCISULA Verrlll. A chunky little 

 shell in which the axial ribs are more 

 prominent at the posterior end and forming 

 a crown at the shoulder; special sculpture 

 consists of rather broad light incised 

 lines which upon the body whorl are more 

 numerous and closely placed in the region 

 of the columella; the latter broadly spread 

 out with a yellowish callus. Length 6.5mm. 

 Depth range 5-110 fathoms. 

 PI. 53, Fig. 20 



Labrador to off Newport, Rhode 

 Island 



LORA NOBILIS Moller. Whorls seven; about 

 fifteen prominent rather sharp axial ribs; 

 spiral sculpture between ribs also strong; 

 shoulder well marked; canal wide and short. 

 Length 12-17 mm. Depth range 7-15 fathoms. 



PI. 47, Fig. 13 



Greenland to Maine 



LORA PLEUROTOMARIA Couthouy. Whorls eight; 

 shell narrow and tapering; eighteen to 

 twenty oblique rounded axial ribs and very 

 indistinct spiral sculpture; body whorl 

 more than half length of shell. Length 

 11 mm. Depth range 5-235 fathoms. 



PI. 47, Fig. 15 



Labrador to Martha's Vineyard, 



Massachusetts 



GENUS MANGILIA Rlsso 1826 



Slit at suture of shell; no opercu- 

 lum; aperture oval-elongate, usually narrow 

 and ending in short truncate canal. 



Animal sluggish in its actions but 

 capable of sustaining itself upon surface 

 of water, shell downward, 



MANGILIA ATROSTYLA Dall. Shell small, sol- 

 id, usually yellowish; lip thick, broad, 

 often Indented; about eleven rounded axial 

 ribs upon body whorl; notch not deep; su- 

 ture deeply cut. Length 7 mm. 



PI. 47, Fig. 16 



PI. 65, Figs. 4, 4a 



North Carolina to Gulf of Mexico; 



West Indies 



MANGILIA CERINA Kurtz and Stlmpson. Whorls 

 seven, well shouldered; about ten strong 

 axial rounded ribs which taper off toward 

 the sutures, parallel sculpture fine and 

 indistinct, the latter crossed by more 

 prominent spiral lines which are less ap- 

 parent upon the axial ribs. Length 9-11.5 

 mm. 



PI. 33, Fig. 23 



Massachusetts to Florida 



MANGILIA CERINELLA Dall. Whorls eight, su- 

 ture deeply impressed, horizontal sculp- 

 ture distinct; strongly ribbed vertically, 

 about seven ribs on body whorl; aperture 

 narrow. Length 11 mm. Specimens have been 

 taken at Sanibel. 



