MYTILUS. 321 



Variety A. Shell blackish, with paler rays, and the cardinal 

 lobe long and narrow. 



Avicula communis. Lamarck Syst. des Anim. p. 134. 

 Avicula. Eric. Meth. t. 179- f. 9- 



Bonanni Rec. 2. f. 58, and Kirch, f. 57- Lister Conch. 

 t.220. f. 55. Rumphius, t. 46. f. G. Petiver Amb. t. 

 19- f. 9. Gualter, t. 94. f. B. ArgenviUe, t. 19- f. B. 

 Knorr, iv. t. 8. f. 3, and v. t. 10. f. 1 and 2. Adanson 

 Senegal, t. 15. f. 6. Favanne, t. 42. f. C 1. 



Variety B. Reddish, with the cardinal lobe somewhat arcu- 

 ated. 

 Chemnitz, viii. t. 81. f. 723. Enc Meth. t. 177. f. 10. 



Variety C. Dusky citron colour, with two brownish red rays, 

 the cardinal lobe pointed. 

 Avicula Chinensis. Leach Zool. Misc. ii. p. 86. t. 38. f. 1 . 



Variety D. Reddish yellow, with two black rays, and the 

 cardinal lobe pointed. 

 Chemnitz, xi. p. 255. t. 205. f. 2025 and 2026. 



Variety E. Brown, with the cardinal lobe broad and short. 

 Chemnitz, viii. t. 81. f. 724. Enc. Meth. t. 177. f. 11. 



Variety F. Yellowish green, with blackish rays, and the cardi- 

 nal lobe short. 



Lister Conch, t. 224. f. 59- Chemnitz, viii. t. 81. f. 725. 

 Favanne, t. 42. f. C 2. Enc. Meth. t. 177. f. 8. 



Variety G. Green, with white rays, and the cardinal lobe 

 small. 

 Chemnitz, x. t. 171. f. 1672. 



Variety H. White, with greenish dotted rays, and the lobes ob- 

 solete. 



Mytilus meleagridis. Chemnitz, viii. p. 143. t. 81. f. 726. 

 Mytilus, No. 3. Schroeter Einl. iii. p. 45 1 . 

 Mytilus Hirundo, Var. 8. Gme/in, p. 3357. 

 Avicula. Enc. Meth. t. 177. f. 5. 



Inhabits the Asiatic, West Indian, and Mediterranean Seas, 

 and the coasts of Guinea. Chemnitz. 



Shell generally from two to four inches long, and varying much 

 in breadth as well as in form, thickness, colour, and mark- 

 ings ; the cardinal lobe in length sometimes exceeds that of 

 the valve, and it is often much shorter ; the inside is pearly. 

 H is probably more nearly allied to M. Ala-corvi, and 

 Chemnitz says it is extremely rare and beautiful, and very 

 thin and brittle. 



VOL. J. y 



