LEPAS. 49 



PARROT-BEAKED ACORN. 



17. Lepas Psittacus. L. testa posterius adltnca sexvalvi rugosa. Linn. 



Gmel. p. 3212. Molin. Hist. Nat. Chil. p. 179. 

 Shell of six valves, hooked behind, and wrinkled. 



This is an obscure species, mentioned by Molini, 

 and found in clusters on the coast of Chili. It ad- 

 heres to rocks. The two larger valves resemble a par- 

 rot's bill : the flesh is white, tender, and palatable. 

 From the account which Molini gives of this shell, it 

 appears to be a variety of the L. Tintinnabulum rather 

 than a distinct species. 



SPINY ACORN. 

 PI. 7. /. 4, 5. Mr. Sowerby. 



18. Lepas spinosa. L. testa conica, areis duodecim triangularibus : sex 

 depressioribus minoribus albidis transversim striatis, sex pvrpureis 

 longitudinaliter striatis, spinisque tubuhsis recurvis armatis. Linn. 

 Gmel. p. 3213. 



Shell conic, with twelve triangular compartments : the six smaller ones 

 depressed whitish and transversely striated, the other six purple, 

 striated longitudinally, and armed with tubular recurved spines. 



Balanus, testa subcylindrica, valvulis incequalibus quadrifariam spinosis, 

 radiis transverse striatis. Brug. Encyclop. Method. Hist. Nat. torn. 

 6. p. 167. 



Davila Catal. torn. 1. p. 402. t. 6. f. N. Favanne Conch, t. 59. f. A. 1. 

 Schrot. n. Litter at. 1. p. 430. t. 2. f. 10. Chem. Conch. 8. t. 98. 

 f. 840. fy t. 99. f. 841. Encyclop. Method, pi. 164. f. 9, 10. 



This shell is generally of a reddish or purple colour 

 on the outside, and white within; though it varies in 

 this respect, being sometimes of a pale grey, and even 

 whitish all over. The internal substance of the valves 

 is very porous: the operculum consists of four thin 

 triangular valves, striated transversely. 



VOL. I. e 



