PI >i <> ri i( >rn. i] 



reported /////// from l'..rt Lincoln, I'. / 

 specie- can lianlly he tin- true hill^n \ 



( in POS BLOVOAT1 - r.lainville. I'.ody <|iiii< r row, COIi 



rounded equally at the two extremiti* end 



valves sensibly smaller propnrt ionally tlian in tlie ,^ ?pecie., 



hut .-till alike. Anterior valve tuhemdose lhrou;_diout the L r i 

 part of its extent, its border of insertion divided into ]." very short 

 teeth, not pectinated ; posterior valve -hoit with 1 1 t it all 



pectinated ; the lateral arcasof the intermediate valvesare q 

 cej)tible; the margin subsquamose; color extremely variably ^reen 

 on each side, the middle of the back yellowi.-h-whitr. 

 Diet. Sc. Nat. xxxvi, p. 042). 



Seas of A ustralia(\ Vion A- I.estieur). 



Apparently an JscJuiochitoii, but certainly not determina 



CHITON LINEOLATUS Blainv. Body oval, quite Ion;:, the lateral 

 areas of the intermediate valves less distinct than in the preceding 

 species [C. pictus Blv.] and having numerous strife at the borders ; 

 the scales of the girdle very small ; the teeth of insertion not pe 

 ated. Color varied \vithsmalllongitudinalbrownspot- io\v- 



ish ground. (Blainv 1. c., p. 541.) 



Island of King (IV-ron and Lesueur). 



CHITON ALBIDUS Blainv. Body oval, thick, quite d< 

 the girdle moderate and covered with short and very line hairs. 

 Shell large, 8-valved, proportioned nearly as in the preceding 

 species [C. hirtosus]; the lateral areas of the intermediate valves 

 a little indicated by a plane surface, and bordered by >om> 

 growth. Anterior valve festooned on its margin of adhesion, divided 

 into 9 large and entire teeth ; the posterior valve without slits in its 

 plate of insertion. Color of girdle uniform graj-brown 

 white, or irrayi>h below, of an aqua-marine green within. 

 Diet. Sc. Nat. xxxvi, p. 547). 



Seas oj the Miml <>f / 



This is evidently a Plaxiphora. 



CHITON COSTATUS Blainv. Pody oval, wider in tin- middlethao 

 at the ends; girdle covered with quite h>nir hairs. Slu-11 -ibc.irin- 

 ated, 8-valved, the intermediate valves wider than the other-, having 

 the summit somewhat beaked, and the lateral areaa separated from 

 the median l>y a projectinir rib. Anterior valve small, sen. 



