132 
Memoirs of the Indian Museum. 
[VoL. II, 
-,-(f . Station 196 : 484 fathoms 
492 7 
1 0 • 
TYPES. Station 
333 : 
401 fathoms 
5 0 3 1 
1 0 
197 : 
406 
5 3 76 
1 0 • 
y y 
248 : 
224 — 284 fathoms 
5 6 i.O 
1 0 • 
(On irregular 
Echinoid.) Station 248 
224 — 284 fathoms 
Marine Survey. 
? y 
[Subsp. helium, Pilsbry.] 
Megalasma bellnm, Pilsbry, Bull. Bur. Fisheries (U. S. A.), xxvi, p. 183. 
-f§-. Hawaiian Islands , . . . . . Dr. H. A. Pilsbry. 
Subgenus Gi^yptelasma , Pilsbry. 
[Megalasma carinatum (Hoek).] 
Pœcilasma carinatum, Hoek, “ Challenger ” Reports, vol. viii, Cirr., p. 44. 
CO-TYPES. Off coast of Cuba . . . . British Museum (H.M.S. 
“ Challenger ” ). 
[Megalasma gracilius, Pilsbry.] 
M. gracile gracilius, Pilsbry, op. ext., p. 88. 
M. gracilius, id., Proc. Acad. Nat. Sei. Philadelphia, Sep. 1907, p. 414. 
(From capitulum of Scalpellum giganteum.) 
Atlantic Cable, West Indies . . Roy. Scottish Museum. 
(From capitulum and peduncle of Heteralepas 
cygnus.) Locality unknown, probably 
West Indies .. .. .. ,, ,, 
Genus Dichelaspis, Darwin. 
16 8 4 
1 0 • 
5.6 81 
1 0 • 
1111 11_2 2 
1 0 > 1 Ö • 
16 5 8 . 
1 0 • 
112 1 
1 0 ■ 
1111 
1 0 • 
Dichelaspis tridens (Aurivillius). 
(From gills of Thenus orientalis.) Lat. 3° 58' 
N., Long. 98° 47' E. : 15 — 17 fathoms . . 
(From gills of Thenus orientalis.) North 
coast of Achin, Sumatra 
(On Xantho scaberrimus.) Balasore Bay, 
Bengal coast 
(From gills of Calappa exanthematosa .) Bay 
of Bengal : 91 — 112 fathoms 
(On Thenus orientalis.) Lat. 0° 14' N., Long. 
104° 4' E. : 13 — 16 fathoms 
(From gills of Thenus orientalis.) Orissa coast 
Dr. P. N. van Kämpen. 
y y 
Bengal Fisheries. 
Marine Survey. 
Dr. P. N. van Kämpen. 
Bengal Fisheries. 
