SOLEN. 



341 



Syn. Fistula, Mart. Vagina, Milhlf. Solenarius, Dum. 

 Hypogsea, Hypogseoderma, Poll. Listera, Leach. 



Ex. S. vagina, Linnaeus, pi. 92, fig. 1. Shell, S. vagina, 

 fig. 1, a, 1, b. 



In this genus the mantle is produced behind into a 

 truncate siphonal sheath which contains the two short 

 siphons which are never extended beyond the shell. The 

 animal has the power of changing the terminal portion of 

 the foot from a tapering point to an obtuse club. By sud- 

 denly extending the foot it is enabled to ascend rapidly 

 the deep burrow it forms in the sand. It has also the 

 power of darting forward, according to the observations of 

 Mr. W. Clark, with a rapidity equal to that of the Pectens. 

 These animals are found buried vertically in the sand be- 

 tween high and low water mark on the shores of most 

 temperate and tropical countries, their short siphons only 

 appearing at the surface. Soleti vagina is sought eagerly 

 after as a bait for fish, and also, in many parts, as an article 

 of diet. 



Species of Solen. 



acinaceus, Hanley. 

 albus, Martyn. 

 Beckii, Phil. 

 brevis, Gray. 

 comeus, Lam. 

 cylindraceus, Hanley. 

 exaratus, Phil. 

 gracilis, Phil. 

 Guiniensis, Gray. 

 linearis, Chem. 

 marginatus, Koch. 



orien talis, Dkr. 

 Pkilippinarum, Hanley. 

 Tehuelcha, D'Orb. 

 scalprum, King. 

 Schultzeanus, Dkr. 

 sicarius, Gould. 

 Sloan ii, Gray. 

 vagina, Linn. 

 versicolor, Phil. 

 viridis, Say. 

 Zeylanensis, Leach. 



VOL. II. 



Y Y 



