CEPHALOPODA (OCTOPODA, DECAPODA). Moll. 55 
CEPHALOPODA. 
The British Museum Catalogue of Fossil Cephalopoda contains an 
interesting discussion of the subdivisions of the Tetrabranchiata , of the 
order of succession of the principal types, and of the distribution of the 
Nauliloidea in space and time. The Nautiloidea include the following 
families : — Orthoceratidce , Endoceratid.ee , Actinoceratidce , Gomphoceratidce , 
Ascoceratidce , ■ Poterioeeratidce , Gyrtoceratidee , Lituitidce , Trochoceratidce , 
Nautilidec , Bactritidce ; Fooitn. 
Remarks on the phylogeny of Cephalopods ; Hyatt. 
DlBRANCHIATA. 
OOTOPODA. 
AltaONAUTIDiE. 
Argonauta argo : description of shell believed to be exceptionally com- 
plete ; Darbishire. 
TREMOCTOPODID2E. 
Tremoctopus dbderleini , n. sp., Tokio ; Ortmann, p. 642, pi. xx. 
OCTOPODIDJU. 
Octopus Icagoshiniensis, p. 644, pi. xxi, fig. 2, 0. broclci } p. 645, pis. xxi, 
fig. 4, & xxii, fig. 1, d. spp., Japan; Ortmann. 0 . chronmtus i n. sp., 
Bermuda ; Heilprin, (2) p. 324, pi. xvi, fig. 1. 0. harmandi , n. sp., 
Cochiu China ; Rochebrune, (3) p. 73. 
DEOAPODA . 
MYOPSIDA. 
Sepiolini. 
Inioteuthis japonica and I. morsei, Vll., redescribed, with figures of 
bectocotylised arms and suckers ; Ortmann, p. 647, pis. xxi, figs. 6 & 7, & 
xxii, figs. 2 & 3. 
Microteuthis , n. g. Mantle dorsally as in Bossia ; mantle fastening by 
knobs fitting into depressions ; fins reniform posterior to middle of body j 
gladius absent ; for M. paradoxa, n. sp., Kadysiama, Japan ; id. pp. 648 
& 649, pi. xxii, fig. 4. 
Sepiarii. 
Sepia hoylei, p. 650, pis. xxii, fig. 5, & xxiii, fig. 1, $. tornsa, p. 652, 
pi. xxiii, fig. 2, S. tolcioensis, p. 653 * 1 xxiii, fig. 3, n. spp., Japan ; id. 
