37 Moll. 
S YSTEMATIO. — PROSOBRANCHIA. 
2231 
| Zygopleura, Cossmann 74. 
Helicinidae. 
Helicina schereri, guajaran a, later - 
cuius, spp. n., Brazil. Baker Philadel- 
phia Proc. Acad. Nat. Sci. 65 pp. 625- 
626. 
Neritidae, Neritopsidae, Tur- 
BINIDAE, TrOCHIDAE AND CYCLO- 
STREMATTDAE. 
f Acrosolarium, Cossmann 74. 
f Astralium arnoldi sp. n. Pliocene Cali- 
fornia, Nomland Univ. Cal. Pub. Geol. 
9 p. 204. 
f Ataphrus pembertoni sp. n. Creta- 
ceous California, Hall & Ambrose Nau- 
tilus 30 p. 69. — A., Cossmann 73. 
f Aulacotrochus gen. n. for Trochus 
nitens , Dum., Cossmann Bull. Soc. 
Geol. Normandie 33 p. 131. 
Brookula, Hedley 166. 
f Calliomphalus , Cossmann 74. 
f Calliostoma with C . fallaciosum sp. n. 
Jura France, Cossmann Bull. Soc. 
Geol. Normandie 33 p. 128. — G. amneris 
sp. n.Cretaceous Egypt, Greco Palaeont. 
Ital. 22 p. 117. — C. conulum varr. n. 
cingulifera, granulosa, C. striatum var. n. 
conjungens Tertiary Italy, Cerulli- 
Irelli Palaeont. Ital. 22 pp. 191-192, 
200. — C. etchegoinensis sp. n. Pliocene 
California, Nomland Univ. Cal. Pub. 
Geol. 9 p. 85. — C. harrisianum, suf- 
folkense, spp. n., C. ( Eutrochus ) shackel- 
fordensis ? sp. n. Miocene U.S.A 
Olsson Bull. Amer. Pal. 27 pp. 19-20. 
Cantharidus rariguttatus sp. n. New 
Caledonia, Sowerby Proc. Malac. Soc. 
12 p. 75. 
f Chartronella raspaili sp. n. France 
Jurassic, Cossmann Essais Pal. Comp. 
1915 [1916] p. 267. 
f Circulus schmidti sp. n. Miocene 
U.S.A., Olsson Bull. Amer. Pal. 27 
p. 18. 
f Cirridae fam. n., Cossmann Essais 
Pal. Comp. 1915 [1916] p. 197. 
f Cirrus (Spirocirrus) hi got i sp. n. 
Franco Jurassic, Cossmann Essais Pal. 
Comp. 1915 [19i0] p. 270. 
Cirsovella iranslucida sp. n. Tasmania 
May Proc. R. Soc. Tasmania 1915 p. 97, 
\Clanculus, Cossmann & Peyrot 75. 
f Coelocentrus, Cossmann 74. 
f Craspedostoma , Chapman 59. 
]Cyclonema globosa sp. n. Carbonifer- 
ous U.S.A., Weller Contrib. Walker 
Mus. Chicago 1 p. 256. — C., Cossmann. 
74. 
Cyclostrema microscopica Nevill fig., 
Annandale & Kemp 7. 
\Gyclostremalidae, Cerulli-Irelli 55. 
\Gycloslremdla magnoliana sp. n. 
Miocene U.S.A., Olsson Bull. Amer. 
Pal. 27 p. 24. 
fj Delphinula helvetica nom. mut. 
or Adcarbis cr is talus, Mayer-Eymar, D. 
( Pseudoninella ) raulini and var. n. 
planibasis, D. ( Pr .) falloti, spp. n.. 
Neogen France, Cossmann & Peyrot 
B ordeaux Actes Soc. Linn. 69 pp. 228- 
234. ; D., Cossmann 74. 
f Eotrochus, Weller 419. 
Ethalia capillata fig., Preston Rec. 
Ind. Mus. 12 p. 92. 
f Ethglia alexandri sp. n. Miocene 
U. S. A., Olsson Bull. Amer. Pal. 27 
p. 22. 
Euchelus profundior sp. n. Tasmania, 
May Proc. R. Soc. Tasmania 1915 p. 98. 
f Eucyclomphalus, Cossmann 74. 
f Eucyclus and E. capilaneus var. n. 
bruni France Jurassic, Cossmann Essais 
Pal. Comp. 1915 [1916] pp. 52, 262. 
f Gibbula with G. sallomacensis n. mut. 
Trochus magus Ben. ; G. ( Gibbuloidella ) 
altispira, G. ( Colliculus ) aquilanica and 
var. n. amphibola, eichivaldi and var. n. 
avitensis, spp. n. ; G. ( C .) benoisii n. mut. 
G. ( C .) glyphidospira, sosensis spp. n. 
Neogen France, Cossmann & Peyrot 
Bordeaux Actes Soc. Linn. 69 pp. 262- 
284 ; G. Diagus, varr. n. perproducta , 
conica, perconica, G. filiformis var. n. 
travsiens Tertiary Italy, Cerulli- 
Irelli Palaeont. Ital. 22 pp. 179-180. 
f Halopea fountainensis sp. n. Carboni- 
ferous U. S. A., Weller Contrib. Walker 
Mus. Chicago 1 p. 260. — H. ( Turbina ?) 
boonei sp. n. Jura France, Cossmann 
B ull. Soc. Geol. Normandie 33 p. 124. 
| llypcracav thus, Cossmann 74. 
Lcpioihyra J'uUoui sp. n. Aden, 
Sowerby Ann. Mag. Nat. Hist. 18 
p. 491. 
\Liotia ( Arene ) halensis, L. perscul- 
pturata spp. n. Oligocene Georgia, Dall 
U. S. Nation. Mus. Proc. 51 p. 621. 
