938 TESTACEOUS MOLLUSCA. 
Section C. 
Lithodomi. Elongated subcylindrical, dorsal and ventral edges sub- 
parallel; beaks terminal or subterminal : no elevated dorsal angle. 
M. Putrex. Lam. 6. Very small, oblong subtrapeziform, sub- 
cylindrical nearly smooth, depressed at the broader end, brownish 
or violet ash colour %.—New Holland. ‘ Not so arcuated as List, 
ss coh a) Oe 
M. Cinnamonea. Lam. 18. MytitusC. Ch. f. 731.—E. t. 
221. f.4. Subcylindrical, ventricose, curved, retuse at each end: 
beaks slightly prominent; cuticle yellowish chesnut. Mauritius. 13. 
M. Siricura. Lam. 19. Oblong, subcylindrical. straight, with 
merely the lines of growth, both extremities obtuse the anterior re- 
tuse; white with the cuticle very dark chesnut. New Holland. 
“Probably a less curved variety of thelast.” (Desn) The original 
specimen in the museum is certainly very like Cinnamoneus and Fuscus. 
M.Semen. Lam. 21.—Myrtitus Coratiiopuacus. Ch. f. 752. 
D. p. 305.—E. t. 219.f.4. Angulated oblong, obtuse posteriorly and 
attenuated at the anterior extremity, with delicate longitudinal striz, 
the margin partly denticulated. 2.—EKast Indies? 
M. Lirnornaca. Lam.—Myrtitus L. Lin. Sys 1156.—D. p. 
303. Elongated, cylindraceous, straight, more tumid towards the 
beaks, extremities obtuse, with strong longitudinal striz on one 
portion of the shell decussating the lines of growth. Var. A. Ch. 
f. 730.—List. 427. f. 268.—E. t. 221. f. 6, 7.—Mopiota. L. 
Phil. p.71.—Uitnopomus Dacrytus. Sow. G. f. 1.—Meeve Sys. t. 
99. f. 1.—Cuticle chesnut, the longitudinal striz direct and slightly 
undulated. Mediterranean.— Var. B. Myt. Lirnornacus. Lin. mus. 
Ulrie. 539.—Ch. f. 729.—E. t. 221, f. 5. Narrower, the cuticle 
black. 3.— Mediterranean and W. Indies.—The variety (if indeed not 
a distinct species.) E. Indies. 
M. Caypicera. Lam. 23.—EF. t. 221. f. 8.—Le Ropan. Adans. 
Sen. t. 19. f. 2.—Myritus Artstatus D. p. 203.—W. t. 12. f. 8. 
Lituopomus C. Sow. G.f 4.—Reeve Sys. t. 99. f. 4.—L. Srriatus. 
Lin. Tr. 8.1. 6. f. 3, 4, 5. Elongated, straight, smooth, very thin, 
subcylindrical, nacreous under the fulvous yellow epidermis, which 
is usually covered with a whitish calcareous coating strongest at 
the anterior extremity and produced beyond the shell in two narrow 
beak-like appendages which cross each other ; beaks obsolete ; 
ventral edge nearly straight; dorsal very slightly elevated as far 
as the termination of the ligament, and sloping obliquely thence to 
the obtuse anterior extremity. 24.—Senegal. 
M. Arrenvata. Desh. in Lam. vol. 7. p. 28.—Litnopomus 
Cavoicrrus Var. Sow. G. f 3.—Reeve. t. 99. f. 3—Elongated 
and narrow, subcylindrical, obtuse at the beaks, at the other extremi- 
ty attenuated and terminated by calcareous appendages which do 
