^1 
No. 4.— PYRAMIDELLIDAE OF NEW ENGLAND AND THE 
ADJACENT REGION. 
BY PAUL BARTSCH. 
Introduction. 
Our knowledge of the Pyramidellid fauna of the northeast coast of 
America began in 1821, when Thomas Say ('21, p. 244) described 
two species of Odostomia: 0. impressa and 0. bisiduralis under the 
genus '^rurritella. To these he added a third, six years later, Tur- 
bonilla {Chemnitzia) aequalis, which he likewise referred to Turritella. 
The next to increase our information was Joseph G. Totten. His 
two papers on New England shells, published in the American journal 
of science for 1834 and 1835, contain descrij^tions and figures of 
Actaeon trifida (Totten, '34, p. 368) and Turritella interrupta (Totten, 
'35, p. 352). 
Three years after this, in 1838, Jaminia exigua and Pyramis 
striatulus were named by Joseph P. Couthouy ('38, pp. 92, 101) 
from Massachusetts Bay. The first of these has since proved to be a 
synonym of Odostomia {Menestho) hisuturalis Say, and the second is 
removed from the Pyramidellidae to the Eulimidae in the present 
paper. 
The year following. Professor C. B. Adams ('39, pp. 280, 282") 
described and figured Jaminia scviinuda and Pi/ramis fusca which are 
now known as Odostomia {Clirijsallida) seminuda C. B. Adams and 
Pi/ramidella {Syrnola ?) fusca C. B. Adams. The next year, 1840, 
he (Adams, '40, p. 322) added Jaminia producta which, like J. fusca, 
we have doubtfully referred to the subgenus Syrnola. 
The "Report on the Invertebrata of Massachusetts" by Augustus A. 
Gould was published by the State in 1841. In this are described and 
figured: Turritella interrupta Totten, Pyramis striatula Couthouy, 
Odostomia producta C. B. Adams, 0. fusca C. B. Adams, O. exigua 
Couthouy, 0. seminuda C. B. Adams, 0. trifida Totten. Hfe cites 
Turritella hisuturalis Say as a synonym of Odostomia exigua Couthouy, 
a decision now reversed by the rule of priority. It is in this paper that 
we have the name Odostomia appUed properly for the first time to 
some of our species. He also states that Turritella interrupta does not 
belong to Turritella but may be a Eulima^ which at least places it in 
the proper superfamily. 
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