Descriptive — of the British Testacea. 107 
5. 
pellucidus. M. testa oblonga, levi, tenerrima, pellucida, longitudi- 
. maliter violaceo-radiata. 
Pennant Brit. Zool, t. 63. f. 15. ) 
Chemn. Conch. 8. t. 84. Jv 4523. E. pte . 
Donovan Brit. Shells, t. 81. 
Montagu Test. Brit. p. 160. 
Habitat in mari. 
Testa 2 poll. longa, 1 lata, albida, sub epidermide lutescente. M. eduli afi- 
nis, sed tenerrima, levissima, glaberrima. 
First noticed by Pennant. Found in Anglesea, by 
the Rev. Hugh Dents: and in Mibi) by Mr. Do- 
novan. 
6. - x 
ungulatus. M. testa levi, subcurvata; margine posteriori inflexo, 
cardine terminali, bidentato. Linn. Sys. d Nat. p. 1157. 
nm. 254. Linn. Gmel. p. 3354. 
Lister Conch. t. 364. Ff: 2035” 
Gualt. Test. t. 91. f. E. 
Regenf. Conch. t. 4. f. 4T. 
Chemn. Conch. 8. t. 85. f. 156. 
Donovan Brit. Shells; t. 13% foa 2. 
Habitat in mari, rarissima, - Jedi à 
Testa rudis, fragilis, livida, striata transversim quasi ex lineis imbricatis. 
Sutura postica linea recta excurrit ultra apicem obtusum. Cardo rima 
"longitudine suture eique parallela. Par testarum distinctarum, in 
- plano juxta se positarum, refert ungulas pecoris binas medio a se in- 
-. vicém. dehiscentes et basi divaricatas. ~- (Linn. Mus. Lud. Ulr. p. 541.) 
Yet noticed as British by Mr. Donovan. Found on 
the coast of Cornwall, by Miss Pocock. 
Pe testa levi, margine anteriore carinato, umbonibus 
gibbis, cardine sublaterali. Linn. Syst. Nat. p. 1158. 
n. 956. Linn. Gmel. p. 3354. ; 
P : T 
