4 LEPIDOPLE1 



ii m*.}. Conch. 111. f. 1()4- 



3& HAM 



Brit, M-'ll. ii. I>. -Jl ( >. : Brit. < nch. iii, 



p. -J17: v. p. l'. I. Lr/.i'lnjJtuirns r'tnrellntn* BARS, 



Moll. .. p. IN. t. 7. f. 6; t.i,f.&.Lq)tochiton 



i/>, p. :;.- - Du.i.. Proc. I". 6. Nat. Mu,. 187* 



Linn..//'/' Hanlcy. Chiton as ellus 

 MIDI.., not .if Lowe. ( An r., n..t Payr. / Ch. isliimliru* 



Tli without careful inspection will usually be confounded 



wiih small specimen- of Tr'irliinlcnmiH iiUnis, but a --lance at the 

 sculpture i- -utlicient to separate it. From several other species of 



ailily distinguished, and a magnifier is indis- 



ahlr. The ditlerential characters are as follows: 

 The pu.-tules which constitute most of the sculpture are arranged 

 like overlapping coins or a solid-linked chain in lines which in the 

 1 area an- nearly parallel with the longitudinal axis of the 

 animal. The lateral area- are distinct, and the pustules upon them 

 in rather indistinct lines radiating toward the lateral 

 of the valves, at nearly right angles to the lines on the dorsal 

 ilpture on the mucro is more delicate than elsewhere. 

 The apex of the po>terior valve is not sunken and is not so sharp 

 -i>ecies compared with it here ; the girdle is scaly, with 

 -mall, spino^e, transparent scales near the margin. There 

 live L r ill plume- on each side, prominent and near the vent. 

 pear to be two fenestra on each side. The lateral areas 

 .(her portions of the valves are nearly always colored with 

 blacki-h or frrniL'inoiis patches, but these, as with Tr<i('lii/(lcnnnn 

 n/bn# >eem to be really c<.mpo>ed of extraneous matter. In L. fuli- 

 Ad. A: live., the pustules are much smaller, and while hav- 

 ing a Lfeneral longitudinal arrangement on the dorsum, do not form 

 llariy defined TOWS Or chains. The areas are not raised above 

 the dor-uni. The shell is much larger and more elevated, with a 

 :iken and |iiite sharp posterior mucro. Tin- other 

 nine ii"i raided but about them the sculpture is more regu- 



larly aliened than eUewhere. 1 have compared the valve- of a 

 typical >|M-< -iinen from Korea, collected by Belcher. I figure 



of the sculpture i- very bad. as are nio-t of his details. L. alveolus 

 di-tinct though it has been confounded with 



thi-. It- sculpti;! and rather ni..iv Sparse, 



