732 MUREX. 



UNDATUS. 100. Shell ovate, longitudinally plaited 

 and transversely grooved ; outer lip double 

 and toothed ; beak short, and tlie throat 

 white. 



Murex undatus. Chemnitz, xi. p. 124. t. J92. f, 1851 and 

 1852. 



Inhabits the coasts of Tranquebar. Chemnitz. 



This shell, by Chemnitz's figure, appears to be about fourteen 

 lines long, and half as broad, of a blackish brown colour, 

 and the throat white ; it has angulated transverse ribs or plaits, 

 crossed by transverse grooves, and is somewhat nodulous. 

 M. undatus of Gmelin appears to be nothing more than a 

 trifling variety of M. Colus, and the present shell is proba- 

 bly not distinct from M. Fiscellum. 



viRGATUS. 101. Shell ovate, longitudinally plaited 

 and nodulous, and transversely ribbed ; aper- 

 ture ovate, and the outer lip toothed within. 



Murex plicatus. Gmelin, p. 3551. 

 Murex, No. 31. Schroeter JEinl. i. p. 554. 

 Buccinum virgatura. Solanders MSS. 

 Martini, iv. p. S3, t. 123. f. 1441 and 1442. 



Inhabits the East Indian Seas. Martini. 



Shell about three-quarters of an inch long, and half an inch 

 broad, and possesses considerable affinity with Buccinum 

 Tranquebaricum ; the colour is purplish brown, with about 

 four whitish ribs on the body-whirl, and of these the two up- 

 per are sharply nodulous, and spotted with orange ; the in- 

 side is white, and appears striped from the transparency of 

 the shell ; the beak is very short and straight. 



CORONA. 102. Shell ovate, with the whirls flat 

 above, and crowned with undulated mem- 

 branaceous scales; beak short. 



Murex Corona. Gmelin, p. 3552. iSchreibers Conch, i. 



p. 196. 

 Murex Corona Mexicana. Chemnitz, x. p. 243. t. l6l. f. 



1526 and 1527. 

 B 'Jvila, t. 9. f. A. 

 Inhabits the Gulf of Mexico. D 'Jvila. 

 Shell about two inches and a half long, and the breadth is near- 

 ly three-fifths of the length ; the whirls become flattish to- 



