CHITON.—Ptuatr XX. 
subprofundé sulcatis, sulcis clathratis, valvd posticd 
terminali umbonatd ; viridi-fuscescente, rubido tincta ; 
ligamento granato-coriaceo. 
THE VERY BEAUTIFUL CurTon. Shell oblong-ovate, 
somewhat angularly raised in the middle, terminal 
valves conspicuously ribbed, ribs nodulous, central 
areas somewhat. deeply grooved, grooves latticed, 
posterior terminal valve umbonated ; greenish brown, 
stained with red; ligament granately coriaceous. 
“SowErsy, Pro. Zool. Soc. 1841. p. 103. 
Hab. Gindulman, Island of Bohol, Philippines (in the 
crevices of rocks at low water) ; Cuming. 
The sculpture of this species is very elaborate and de- 
veloped with peculiar force. 
Species 134. (Mus. Cuming.) 
Curron Sunziensis. Chit. testd oblongo-ovatd, valvis 
ad latera creberrimé concentricé undulato-rugatis, rugis 
medium versus obliquis, umbonibus subrostratis depres- 
sis; lutescente, pallide coccineo viridique eximie tincté, 
ligamento corneo. 
Tue Suez Curton. Shell oblong-ovate, valves very 
closely concentrically wrinkled at the sides, with 
oblique wrinkles towards the middle ; yellowish, deli- 
cately stained with pale scarlet and green ; ligament 
horny. 
Hab. Gulf of Suez. 
A very interesting and well-defined species, from the 
collection of W. Metcalfe, Esq. 
Species 135. (Mus. Cuming.) 
CuiTon LaQueatus. Chit. testd oblongo-ovatd, valvis 
obtuse rugoso-granatis, anticd terminali quinque-costatd, 
costis depressiusculis, posticd terminali vix umbonatd, 
concavo-depressi, ecostatd, ceterarum areis lateralibus 
unicostatis, centralibus medio subcarinatis; violaceo- 
purpurea, albo viridique notaté ; ligamento corneo. 
THE FLUTED CuiTon. Shell oblong-ovate, valves obtusely 
roughly grained, anterior terminal valve five-ribbed, 
ribs rather depressed, posterior terminal valve scarcely 
umbonated, concavely depressed, not ribbed, lateral 
areas of the rest one-ribbed, central areas slightly 
keeled in the middle; violet purple, marked with 
white and green; ligament horny. 
Hab. Calapan, Island of Mindoro, Philippines (found in 
coarse sand among small stones at the depth of nine 
fathoms) ; Cuming. 
The umbonal ridge of this very characteristic species is 
marked in each valve with a triangular spot. 
