14 CHITON. 



spot, like enamel, and on the sides where the yellow 

 coat is wanting, the white toothed edges, and striae of 

 the marginal triangles may be seen as in the old shell. 

 The inside is variegated, but the rose colour predomi- 

 nates. 



These interesting specimens are both in the possession 

 of Mr. Jennings, who liberally allowed them to be fi- 

 gured. Their country is unknown. 



RED CHITON. 



14. Chiton ruber. Ch. testa octovalvi arcuata substriata corpore rubro. 



Linn. Syst. Nat. p. 1107. 

 Shell of eight valves, slightly striated, striae varied ; body red. 

 Chem. Conch. 8. t. 96. f. 813. Chem. Chiton, t. 2. f. 3. Encyclop. 



Method, pi. 161. f. 6. 



This species is about an inch long, of an oblong form, 

 with the back carinated, or keel shaped. It is generally 

 of an uniform red colour, but sometimes there is a 

 darker streak on the back, and where it becomes marbled 

 with red and white, it forms the variety represented by 

 Chemnitz, pi. 96. fig. 812. 



It inhabits the North seas, and adheres to limpets. 



PUNCTURED CHITON. 



15. Chiton punctatus. Ch. testa octovalvi Icevi, corpore punctis excavatis. 



Linn. Syst. Nat. p. 1107. 

 Shell of eight valves, body with hollow dots. 

 Chiton corpore punctato, testis octo. Amczn. Acad. 3. p. 256. Seb. Mus. 



3, 1. 1. f. 132. 



This species is given on the authority of Linnaeus, but 

 is very indistinct. Two of the four references given by 

 Linnaeus have been rejected by Dr. Solander as incor- 

 rect. It is said to inhabit Asia, Europe, and America. 



