Perkins.] 114 [October 6, 



Buccmnm 



Fulgur Mont. 



Fulgur carica Gill, Am. Jour. Conch., Vol. in, p. 145. Murex 

 carica Linn., Gmel., 3545. Pyrula carica Gould, Invert. Mass., p. 

 296; De Kay, Moll. N. Y., p. 141, pi. ix, figs. 192-193. 



This species is not common usually on shore, but sometimes it is 

 abundant. It occupies the Laminarian zone, and most abounds near 

 oyster beds, where it commits great ravages. Animal, large, dirty 

 white to almost black; mantle thick, white, edge plain; proboscis 

 long, cylindrical, slightly bilobed and black, or nearly so at the end, 

 lighter next the body; tentacles short, triangular; eyes on the outer 

 side near the base; gills two; one large, crescent-shaped, and below, 

 and a little in front, one much smaller, curved, fusiform, grooved 

 through the centre; the larger gill is narrower and thicker behind 

 than before; foot large, oval, yellow below, blackish above, under 

 surface much corrugated ; verge very large and long, much flattened, 

 pointed. Dentition 1-1-1; lateral teeth with a sharp curved outer 

 denticle, then three shorter and more slender, and an inner stout 

 triangular denticle ; median tooth with 4-5 sharp conical denticles; 

 the number of denticles varies in the same sex and even on the same 

 ribbon at opposite ends. The operculum is ovate, thick, with a 

 broad callus around the inner edge, which is heaviest on the left 

 side; outer surface coarse and rough; color greenish yellow. The 

 ova cases of this species consist of a series of membranous disks 

 attached to a connecting cord of the same substance, forming a 

 string; these strings are quite long, tapering somewhat at the ends; 

 the disks are thin on the edge (the general thickness is about five 

 mill.), broadly ovate, with eleven ribs, which radiate from the at- 

 tached side and scallop the edge; opening opposite the point of 

 attachment; color light yellow ; filled with a colorless, thick, albumi- 

 nous substance, in which float about sixty young. In a string forty- 

 two centimetres long, there were seventy-five disks, whose average 

 size was thirty-two mill, broad by twenty-two long. They are most 

 common in March and April. 



MEASUREMENTS. 



Length of shell, $ 122 mill. Breadth 62 mill. 



bodv 168 " 



larsfe gill 36 " " 9 " 



small " 18.6" " 3.4" 



proboscis 27 " 



lingual ribbon 40 " " 2 " 



tentacles 18 '" ll 4 " at base. 



