296 SHELLS AND SHELL-FISH. PART II. 



inner lip smooth ; the spire much shorter than the 

 aperture ; an internal groove at the upper angle of 

 the aperture. 



Murex Lin. Canal very long ; shell armed with acute, 

 cylindrical, tooth-like spines, mostly arranged in three 

 varices. 



tenuispina. Sow. Gen. f. 2. cornutus. Mart. 1 14. f. 1057. 

 crassispina. Mart. f. 1052-4. brandaris. Ib. f. 1050. 1058. 



Haustellaria Sw. Canal excessively long ; shell with- 

 out spines ; the varices tuberculated. 

 erythrostoma Sw. Sow. Gen. f. 1. (Murex haustellum L.) 



Phyllonotus Sw. Canal moderate ; varices foliated, la- 

 ciniated, compressed, or resembling leaves (fig. 66. d). 



inflatus. Mart. 102. f. 980. endeva. Ib. 107. f. 107,108. 

 eurystomus. Zool.Ill. ii. 100. (Aberrant.) 



imperialis. Ib. pi. 109. adustus. Ib. f. 990, 991. 



cervicornis. Sow. Gen. f.4. trunculus. Ib. f. 1018, 1019. 



Scorpio. Ib. f. 3. saxatilis. Ib. f. 1011, 1012. 



calcitrapa. Mart. 102. f. 982. palmarosee. Lister. 946. f. 41. 



brevifrons. Ib. f. 983. capucinus. Chem. 192. 1849. 

 axicornis. Mart. 105. f. 989. 



Murlcanthus Sw.* Varices numerous, foliated ; spire 

 short; margin of the outer lip with a prominent 

 tooth near the base. 



radix Sw. Zool. 111. 2d series, melanomathus. En. Meth. 

 pi. 113. 418. f. 2. 



Pteronotus Sw. Varices three, compressed, fin-shaped ; 

 canal moderate, generally closed by the union of the 

 two lips at their base. 



pinnatus. Zool. 111. ii. pi. 112. tricarinatus. En. M. 418. f. 5. 



tripteroides. En. M. 41 7. f. 3. phyllopterus. Sow. Gen. f. 5. 



trigonularis. Mart. f. 1031. gibbosus. En. M. 418. f. 1. 



hemitripterus. En. M. 418. acanthopterus. Ib. 417. f. 2. 



f. 4. uncinarius. Mart. f. 1034-5. 



MURICIDEA Sw. Spire more produced, as long or 



* This type was originally called Centronotus; but as that name had been 

 previously given to a genus of fishes, we substitute the above. 



