290 DESCRIPTIONS OF NEW CHITONS. 



intermediary hexagonal, with three diverging bands of dark 

 brown on each. In the much dried specimen from which 

 the figure and description are taken, the minute bunches 

 of hairs are so rubbed that I did not at first discover them. 



Chiton hastatus. (Supp. PI. xvi. fig. 4). 



Ch. testa exigua, granulata ; valvis reclinentibus, acutis : quinque pri- 

 mis perexiguis ; tribus ultimis latioribus ; margine crasso, rudi, fasciculis 

 rubris miiiutis prope valvas instructo. Long, f ; lat. ^, poll. 



Hab. ? Mus. G. B. Sowerby, Sen. 



An interesting little shell, forming a link between the ge- 

 nera Chitonelliis and Chiton, The margin is thick and rough, 

 with little bunches of red hairs ; the valves lean backwards, 

 and are strongly pointed j the first fiYe considerably nar- 

 rower than the last three ; the last has a pointed terminal 

 apex. 



Chiton foveolatus. (Con. Illus. fig. 60). 



Ch. testa ovali depressa, dorso rotundato, laevi : areis lateralibus et ter- 

 minalibus radiatim sulcatis, elevatis ; valvarum marginibus posticis deu- 

 ticulatis ; areis centralibus ad latera foveolatis. Long. 1 ^^ ; lat. -^j poll. 



Hab. .? Mus. Stainforth. 



I am not acquainted with the margin of this species, but 

 from analogy, am inclined to think that it is scaly. The 

 shell is regularly oval, rather flat, smooth, rounded in the 

 centre, the lateral and terminal areas rather elevated, radiately 

 grooved ; the posterior edges of the valves denticulated, the 

 central areas marked at the sides with deep ruts in the di- 

 rection of the lines of growth. General colour bay, inclin- 

 ing to grey at the edges, varied with light patches, and occa- 

 sional bands of light brown. 



Chiton Australis. (Con. Illus. fig. 46). 



Ch. testa ovali, carinata ; dorso elevato ; areis lateralibus distinctis, 

 granoso-costatis ; areis centralibus granoso-lineatis ; margine squamoso. 

 Long. I-^; lat. H, poll. 



Australia. Mus. G. B. Sowerby, Sen. 



Shell regularly oval, with the back rather elevated, angular, 

 the central areas characterized by granular ridges, and the 

 lateral areas by coarser moniliform ridges. The margin is 

 scaly ; the general colour olive green, tinged with rose at 

 the apices of the valves. 



