52 Studies in Geoi.ogy, No. 3 



with a raised lip and a fan-like flare bordering- the outer lip 

 over which the spiral sculpture continues to the raised 

 peristome. The canal is very narrow, open and short. Co- 

 lumella almost straight. Height, 18; diameter, (maximum) 

 1 1 mm. 



This beautiful little Murex has its nearest fossil relative 

 in M. missippiensis Conrad,*** from the Vicksburg, Tampa, 

 and Chipola formations of Florida. It differs in having a 

 shorter canal, with the inner apertural margin smooth instead 

 of crenulate, and with the aperture not as nearly circular 

 as in laqiicoratus. 



Zorritos formation. Zorritos district. 



Suborder Streptodonta 

 Superfamily Taenioglossa 



Family DOLIIDAE 



Genus Dolium Lamarck 



Subgenus MalEa Valenc. 



Dolium (Malea) camnra (Guppy) 



Malea ringens Conrad Pac. R.R. Repts., vol. 6, p. 72, pi. 5, fig. 

 22, 1857. 



Malea camiira Guppy, Quart. Jour. Geol. Soc. Lond., vol. 22, 

 p. 287, pi. 17, fig. 9, 1866. 



Malea sp. ind. Nelson, Trans. Conn. Acad., vol. 2, p. 196, 1870. 



Malea ringens Gabb, {ex parte) Trans. Amer. Philos. Soc., 

 vol. IS, p. 223, 1873. 



Malea camiira Guppy, Quart. Jour. Geol. Soc. Lond., vol. 32, 

 p. 525, 1876. 



Malea camnra Dall, Trans. Wag. Inst., vol. 3, pt. 6, p. 1584, 

 1903 (checklist). 



**Jour. Ac. Nat. Sc. Phila., ser. 2, vol. i, p. 116, pi. n, fig. 30. 

 1848. 



