360 A. Winchell on supposed New Cephalopods. 
vse oa ta and about 1°18 (100) across; dorso-ventral di- 
am t larger end ‘41 (84); at smaller end “34 (29); trans- 
rami idlinectes at sna end ‘38 (32); interseptal space on the 
of an ich 16 (14); distance of stris ‘025, giving 4 in one-tenth 
of an inc - 
dications that it is excentric though not marginal. The ooo ae 
fluted surface recalls some species of Gyroceras figured by aE | 
Koninck, a 
Navtitus (Trematopiscus) MEEKIANUS, Nn. sp. 
Shell small, ered verge whorls not impressed, 
across the dorsum, and even slightly concave along the 
fa urrow, somewhat cordate. Surface nex vidi the lateral i te 
tinetly striate; above it, very obscurel Septa forming 
low sinus just below the lateral tag and 4 
considerably deeper, across the dorsum. la 
Diameter of ese itr! septate) 1-25 (100) ; eto 3 
diameter -40 (32 nsverse diameter °40 (32) ; ntersep 
space on the peck 18 (14); depth of lateral sinus ‘04 (8); 0 
dorsal sinus ‘07 (6); distance of striz -04, giving two and a 
in one-tenth of an inch. 
Locality. Marshall. 
The present species is closely related to the foregoing, but 
differs by a more depressed dorsum and coarser striation. 
Navtitvus (TREMaropiscus) DISCOIDALIS, N. Sp. 
Shell of nee size, flattened dorsally and te it 
of f about 120 )° with the side. Dorsum — a he angle with 
the a, while a raised line es prominence to the eaige™ * 
ralangle. Septa forming a tod moderately deep sinus, 
ds — the entire lateral surface; another one perso upon 
ee sera on one | iano is 22 oa2 0) 
8 (24) on the cal slope 
