132 
THE JN AUTILUS. 
labor would be materially lessened if authors would seud him “ sep¬ 
arates ” of their publications, as soon as issued, addressed to The 
Editor of the Zoological Record, Zoological Society, 3 Hanover Square, 
London W., England. 
Description d’un Perideris nouveau [P. lechatelieri ] prove- 
nant du Dahomey, par Ph. Dautzenberg (Journ. de Conch., 1893, 
pi. I). 
Desc. d’une nouvelle espece du genre Littorina provenant des 
cotes de la Tunisie, par Ph. Dautzenberg (J. C., ’93, pi. I). L. ner- 
villei. 
Desc. d’une espece nouv. du genre Chama prov. des cotes 
oceaniques de France, par Pb. Dautzenberg (Bull. Soc. Sc. Nat. de 
l’ouest de la France, 1892, p. 133, figs. ). Chama nicolloni. 
CONTRIB. A LA FAUNE MALACOLOGTQUE DES ILES SECHELLES, 
par Ph. Dautzenberg (Bull. Soc. Zool. France, 1893, p. 78). Con¬ 
tains important additions to the records in Martens’ work in Mobius’ 
Reise nach Mauritius, etc. No new species. 
Cruise of the Steam Yacht “ Wild Duck ” in the Bahamas, 
etc., Notes on the Shells Collected, by Wm. H. Dali. (Bull. 
Mus. Comp. Zool. xxv, No. 9.) It appears that the lagoons of the 
Bahama Is. are peopled by a peculiar mollusk fauna, evidently 
derived from species living normally in the sea outside. The 
number of lagoon species is small, and they are all marked by (1) 
thinness of shell ; (2) diminutive size; and (3) when colored at all, 
by brilliancy of color, as compared with their nearest relatives in 
the adjacent sea. Among others enumerated by Dali which are 
common to the sea and the lagoons, are the following which occur 
only in and are characteristic of the latter: Cyrena colorata Prime, 
Venus ( Anomalocardia ) leplalea Dali, Tornatina parviplica Dali, 
Cerithium ( Pyrazus ) 7-striatum var degeneratum Dali, Cerithium 
tenuis Pfr. 
A considerable list of land species is given, among them Chondro- 
poma watlingense and Cerion Agassizi are new, the latter fossil. 
Dali calls attention to the fact that the name Strophia is preoccupied, 
and proposes to substitute Cerion Bolteu, 1799, as Mdrch had 
already done in 1850. He gives names to the subdivisions of the 
genus indicated by Maynard, as follows: 
Cerion s. s. Parietal lamina short, situated in the angle between 
pillar and body-whorl; short internal sets of laminae persistent; 
type, uva. 
Strophiops Dali. Parietal lamina penetrating body-whorl to i, 
5 or more its length, central, etc. Type decumana [not Fer. != 
regia Bens. !-Ed.] 
Maynardia Dali. Like Strophiops, but parietal tooth short; 
type neglecta Mayn. 
Diacerion Dali. Parietal lamina double within, and penetrat¬ 
ing one or two whorls; type dalli Mayn. 
Eostrophia Dali, 1890. No teeth or laminae. Type E. anodonta 
Dali, fossil in lower Miocene, Tampa Silex beds. 
