liiTTORiNA. Panama Sheik. 173 



236. liittorina fkg^ciata. 



'Spnonymy. 



Littorina fasciata Gray in Zool. Beech. Voy. p. 139. ; 1839, 



-^ Siebold in Wiegm. Archiv. p. 20^. 183&. 



■ ■' - •• ■- Phil. Abbild. II. p. Si. pi. 6. f. 1, 2. Apr. 1847. 



/Station. — This species was found, with L. varia, Sowb., on 

 the trunks and branches of small trees, which were growing 

 between half tide and high water levels. 



Habitat. — Pacific Ocean ? Gray. 



Tumbez, Peru ; Cuming I Philippi, 

 ■ Panama ; 0. B. A. I 

 160 specimens were collected. 



23Y. liittorina (?) foTeafa. Nov. sp. 



Shell globose conic : dingy white, with a very broad dark 

 brown spiral stripe occupying the middle oi the last and more 

 or less of the upper whorls : with several inequidistant spiral 

 raised lines : apex subacute : spire with the outlines moderately 

 curvilinear: whorls nearly four, subangular, with a distinct 

 suture ; last whorl angular below the middle : aperture sub- 

 ovate : labrum very sharp, but much thickened a little behind 

 the edge : colurhella dilated and thickened : region around the 

 umbilicus mucb excavated, and forming with the umbilicus a 

 funnel-shaped pit. 



Mean divergence about 80°; length .19 inch; breadth .15 

 inch; lengtb of spire .08 inch. 



The generic character, of this species is doubtful. It may pos- 

 sibly be a Nabica. 



Station. — Unknown. 



Habitat, — Panama ; 0. B. A. ! 



2 specimens Were found in the sandi 



JULY, 1852. 44 Aiin. Lto. Nat. Hist. 



