108 Moll. 
MOLLUSCA. 
CHAMACEA. 
ChAMIDjE. 
f Apricardia douvillei , n. sp., Cretaceous of Tunis, Peron, Exped. 
Scient. Tunisie, p. 278, fig. 
Chama , anatomy of; M^nIsgaux, (279) pp. 125-129, figs. 
f Diceras, and its relation to Megalodon and Pachyerisma discussed ; 
Boehm, Ber. Ges. Freiburg, vi, pp. 33-56, figs. 
f D. notlingi , Cretaceous of Syria, Blanckenhorn, (21) p. 85 ; f D. ? 
hobyi , Lower Corallian of the Bernois Jura, Lokiol, Abh. Schw. pal. 
Ges. xviii, p. 227, fig. : n. spp. 
Monopleuridj:. 
f Monopleura tulae , otomitli , votani, n. spp., Neocomian of Mexico, Felix, 
Palaeontogr. xxxvii, pp. 164-166, figs. 
\ f Anodontopleura ) n. g., allied to Monopleura , for A. speciosa, n. sp., 
Neocomian of Mexico, Felix, Paleeontogr. xxxvii, p. 167, fig. 
HlPPURITID^]. 
t Hippurites : Toucas revises the S6nonian species and gives table of 
geological distribution; Bull. Soc. G6ol. xix, p. 527, figs. H. : revision 
of the principal species ; Douvill^, M4m. Soc. Gdol. No. 6. 
f//. corbaricus , p. 9, petrocoriensis , p. 15, inferus , p. 23, gosavi- 
ensis , p. 21, Cretaceous of France, Douvill^, Mem. Soc. G£ol. No. 6 ; 
t U. cedrorum, Cretaceous of Syria, Blanckenhorn, (21) p. 86 : n. spp. 
RaDIOLITIDjE. 
Radiolites : 4 species from the Upper Chalk of the Northern borders of 
the Harz enumerated, and their relationships discussed ; Mueller, JB. 
k. preuss. geol. Landesanst. 1889 (1892) pp. 137-148. 
f R. choffati , n. sp., Cretaceous of Tunis, Peron, Exped. Scient. Tunisie, 
p. 290, fig. 
■\Sauvagesia : internal characters; Douville, Bull. Soc. Geol. xix, 
p. 669, figs. 
CONCHACEA. 
Megalodon tidac. 
f Conchodus ( Conchodon , Stopp.), from the Alpine Trias ; Tausch, Verb, 
geol. Reichsanst. 1891, p. 75. 
f Megalodon discussed in its relation to Pachyerisma and Diceras ; 
Boehm, Ber. Ges. Freiburg, vi, pp. 53-56, fig. 
f M. pumilus, Giimb. : the type of a n. g. Protodiceras ; id. t. c. p. 51. 
