DIBRANCH IATA. 
Moll. 53 
b. PHRAGMOPHORA. 
t Bdemnitidcc are divided by Pavlow into : — 
1. Notocoeli. 
2. Bipartiti. 
3. Dilatati. 
4. Suprasulcati (= Canaliculati , Neum.). 
a. Canaliculati. 
b. Hastati. 
5. Acuarii. 
6. Infradepressi. 
a. Porrecti. 
b. Magnifici. 
c. Explanati. 
Bull. Soc. Mosc. 1891, pp. 269-271. 
\ Belemnites obeliscoides , p. 222, explanatoides , p. 239, breviaxis 
[n. n. for B. abbreviate, Miller], p. 247, pistillirostris [n. n. for 
B. piatilliformis , Blainv.], p. 260, cristatus, p. 261, obtusirostris, p. 262, 
speetonensis, p. 268, Speeton Clay, Yorks., Pavlow, Bull. Soc. Mosc. 
1891 ; t B. rouillieri , mosynensis , Jurassic of Russia, id. t. c. pp. 240 
& 241 : n. spp. 
AMMONEA. 
f Aptychus : true opercula of Ammonites ; Retowski, JB. Mineral, 1891, 
ii, p. 220, fig. 
•M. columbi, n. sp., Cretaceous of Mexico, Felix, Palaeontogr. xxxvii, 
p. 188, fig. 
a. RETROSIPHONATA. 
GoNIATITID/E. 
t Brancoceras pygmaeum , n. sp., Fusulina Litnest., Prov. of Palermo, 
Gemmellaro, Giorn. Sci. Palerm. xx, p. 32, fig. 
\Qastrioceras waageni , n. sp., Fusulina Limest., Prov. of Palermo, 
Gemmellaro, t. c. p. 31, fig. 
b. PROSIPHONATA. . 
Arcestidac. 
. / \/ V \J >/ 
t Waagenoceras , Hyattoceros (and subgen. A bichia), Stacheoceras, Adrian- 
j ites (and subg. Hqff'mannia), 'Propinacoceras, Parapronorites , Sicpnites, 
Daraelites, Thalassoeeras, 4 Paraceltites, Agathiceras, Doryceras , and Clino- 
bolus, n. gg., with many new species ; Gemmellaro, Giorn. Sci. Palerra. 
xix; 1888 (1888). 
