CHITON. 



Interior whitish clouded with olive-plumbeous posteriorly and on 

 autural-laminse ; sutaral-platee wide, sinus rounded, toothed: 



lor valve having 14-1."), central valve- 1 , pi.-tennr valve 15-18 

 slits; teeth hlnnt, pectinated: eaves short, .-pongy. The sutural 

 lami: .o th in-ide. the anterior-median fni'-t is finely wrinkled 



nor tract is punctate. 



tiirdle clothed with coarse, angularly-convex, imbricating scales. 

 Length Id, breadth 2i; mill. 



'//'//'<;/' /Vm/'/-<, rt<nj<>n'nt ; V<i/jKir<u#'>, ('hill. 



1'liiton fjrano*n* FKKMKLY, Zool. Journ. iii, p. 200, suppl. pi. 17. 

 f. 1 (1827). Dn. in Link., An. s. Vert, iii, p. 500. SOWB., Conch. 

 Illustr., p. 2: Moll. iBeechey's Voyage of If. M. S. 'Blossom,' t. 

 4<>. f. .">. IIi:i-:vi:, Conch. Icon., t. 5, f. 27. LojJii/rti* (j,-an.-i* TAP. 

 < IAN. Viag. ' Magenta' p. 75. 



The pustulose lateral areas and end valves and the black, two- 



striped color-pattern are the stronger features of the exterior of this- 



nid the interior is no less strongly marked by the trans- 



wrinkling of the front part of each valve, which may be readily 



seen under the lens without dis-articulating the shell. This wrink- 



ling in other species is confined to a band the width of the sinus, and 



is much le.-s strongly developed. The second valve is broad and 



beaked, with only a narrow smooth dorsal line : the following valves 



have a distinct smooth band. 



( . 8TR1 vn N9QUAMO8U8 ( 'arpenter. 



Shell s'ibrotund, depressed, pale brown-olive ; entire suriace of the 



valves densely granulated : lateral areas rather distinct, valves wide, 



.-liirhtly curved, scarcely beaked; jugum scarcely distinct, very 



delicately longitudinally striated, lateral margins planate : mucro 



iior. -lightly distinct. 



Girdle furnished with solid, oval, large hardly crowded scale-, 

 part deeply siriated : maririns <>f t he valves serrated ; median valves 

 with a .-ingle .-lit on each side, end valves having about 12 slits: 

 .-iitnral-plate- i '".-ly arcuate. 



Length } . l.r.-adth 3, alt. 1 mill.; divergence 140. (Cpr.) 



M'l-'itlnn, on Sinnihjln>- <<> 

 /'/mo.s/'.< < i'i:.. ( 'at. Ma/at. Sh., p. 1<I2. 



