404 MAZATLAN UNIVALVES 
(478. Conus ARENATUsS, Brug. 
Dict. no. 16.—Dillw. Descr. Cat. vol. i. p. 400, no. 83, meds 
Conch. Ic. pl. 17, f. 92.—Lam. An. s. Vert. vol. xi. p. 22, 
no. 18. 
For otber references, v. Desh. in loc. 
One extremely worn specimen of this well-known E. Indian 
shell, was found in the Cone box. It probably came in ballast. 
It measures 1°98 by 1°1. 
Hab.--Ceylon and Philippines, auct. SNS 1 dead sp. ; 
LI’ pool Col 
Tablet 1926 contains the specimen. | 
479. Conus PuNcTiIcuLATUS, Hwass. 
Encycl. Meth. Vers.i. pt. 2, p. 704.—Rve. Conch. Ic. pl. 20, 
sp. 116.—Kust. Mart. p. 41, no. 28, pl. 6. f. 8.— Kien. Icon. 
Conch. p. 172, no. 146, pl. 60, f.1.—ZLam. An. s. Vert. vol. xi. 
p. 85, no. 114, var. b.—WMke. m Zeit. f. Mal. 1851, p. 23, 
no. 98. 
Chelyconus (Leptoconus) puncticulatus, H. & A. Ad. Gen. i. 254. 
Lam. gives this name as of Brug. and quotes it from China. 
There is a closely allied E. Indian species, differing principally 
in having white between the dots on the spiral lines. The 
Mazatlan shell is more or less swollen, with nodulous spiral 
lines near the base: inside lavender. The epidermis is thin, 
nearly smooth, adherent.—The operculum outside is concave, 
with regular lines of growth; the muscular scar displays a 
few strong, angular ridges of growth. The largest specimen 
measures long. 1°3, long. spir. °25, lat. °82, div. 110°. 
A broad sp. so malees bi oS , ase tutes. OS 
An elongated sp. ,, 1°28, = Boe. eee ieee OOS: 
Hab.—Salango and St. Elena; sandy mud, 5—9 fm. ; Cuming — 
Mazatlan ; rare; L’pool Col. 
Tablet 1927 contains 3 sp. normal state.—1928, 3 sp. with 
red-brown patches small.—1929, 1 sp. patches diffused, resem- 
bling the young of C. purpurascens.—1930, 3 sp. slender form.— 
1931, 3 sp. stout form.—i932, 2 sp. after hot acid, shewing 
colour.—1933, 4. sp. mended after severe fracture; in one the 
eanal is twisted to the right, occupying the place of the ante- 
rior sinus in Strombus.—1934, 1 operculum. 
