1864.] MESSRS. ADAMS AND ANGAS ON NEW CHITONIDE. 193 
valvis mediis obtuse carinatis; areis dorsalibus longitudina- 
liter liratis, liris confertim pustulosis. Limbus pallido-fuscus, 
squamulis minutis dense obsitus. 
Long. 8, lat. 4 mill. 
Hab. York’s Peninsula (Coll. Angas.). 
Genus STENOCHITON, nob. 
Testa elongata, angusta, convera. Valve longiores quam late, 
non carinate ; apex posterioris valve subcentralis; lamine 
insertionis parve, valvarum terminalium multis fissuris, inter- 
mediarum utrinque 5 fissuris. Limbus squamulis minutissimis, 
politis, imbricatis obtectus. 
4. STENOCHITON JULOIDES, nob. 
S. testa elongatissima, angusta, antice angustiore, rufo-fusca, 
minute albo maculata et ornata; valvis angustis, longioribus 
quam latis, valde convexis, non carinatis, marginibus laterali- 
bus vie rotundatis, politis; areis lateralibus elevatis et ad 
margines concentrice sulcatis. Limbus angustus, pallido-fuscus, 
atro-fusco maculatus, squamulis minutissimis, politis, imbricatis 
obtectus. 
Long. 25, lat. 6 mill. 
Hab. Holdfast Bay, South Australia (Coll. Angas.). 
This species, from its narrow convex form and polished surface, 
has much the general appearance of a Myriapod, which has suggested 
the name we have attached to it. 
5. CHZTOPLEURA CONSPERSA, nob. 
C. testa oblongo-ovata, convewa, albida, viridi-fusco parce irregu- 
lariter maculata; valva antica radiatim costata et concentrice 
rugoso-striata ; valva postica et valvis mediis tranversim rugose 
et undulatim striatis ; areis dorsalibus subcarinatis, medio sub- 
levibus ; areis lateralibus planis, ab areis dorsalibus costis 
prominentibus divisis, marginibus posterioribus elevatis et ad 
extremitates valde callosis. Limbus pallido-fuscus, atro-fusco 
maculatus, spiculis brevibus, albis, corneis sparsim obsitus. 
Long. 22, lat. 14 mill. 
Hab. Port Lincoln (Coll. Angas.). 
6. Lorica aneast, H. Ad. 
L. testa ovata, postice coarctata et angulata, pallido-fusca, viridi 
variegata ; valva antica concentrice striata et costis pustulosis 
radiata; valva posteriore angustata, transverse sulcata et 
dense longitudinaliter lirata ; valvis mediis subcarinatis ; areis 
dorsalibus dense liratis et transverse sulcatis ; areis lateralibus 
elevatis, radiatim liratis, liris pustulosis. Limbus mediocris, 
olivaceus, squamis minutis obsitus. 
Long. 40, lat. 26 mill. 
Hab. Rapid Bay, South Australia (Coll. Angas.). 
Proc. Zoou. Soc.—1864, No. XIII. 
