Eglisia, Callostracnm, Mesalia, c&c. 377 



Tachyrhynchus subplanata (Carpenter). 



1865. Mesalia (? lacteola, var.) subplanata, Carpenter, Proc. Acad. Nat. 

 Sci. Philad. p. 62. 



Hah. Paget Sound, Wasliington Territory, West N. 

 America; also Neeah Bay (^Cpr.). 



I have not seen this shell, and therefore cannot express 

 any opinion upon its specific value. The author of the 

 species appears to have been doubtful upon tliis point. 



Tachyrhynchus ? costulata, Mighels & Adams. 



1842. Turritella costulata, Mighels & Adams, Boston Joum. Nat. 



Hist. vol. iv. p. 50, pi. iv. tig. 20. 

 1870. Turritella costulata : Gould. Invert. Massachusetts, ed. 2, p. 318, 



tig. 587, apparently after M. & Ad. 



Hah. Casco Bay, i\Iaine, U.S.A. Taken from the stomach 

 of a haddock {M. & Ad.). 



This species, united by Tryon with T. reticulata, is evi- 

 dently distinct. The fine longitudinal costse and microscopic 

 spiral strife at once distinguish it from that form. Apparently 

 a rare shell, and known to me only by the description and 

 figure. 



A pseudo-Mesalia. 

 Mesalia decussata, A. Adams, Proc. Zool. Soc. 1851, p. 279. 



Hah. Island of Masbate, Philippines. 



The type of this species is in the British Museum, and a 

 careful examination of it proves that it belongs to tlie genus 

 Mormula in the Pyramidellidse. 



The form of the aperture, the character of the sculpture, 

 and the thickening of the labrum (the previous labra forming 

 varices at irregular intervals up the spire) are all features 

 characteristic of Mormula. 



Mr. J. R. Le B. Tomlin has shown me several specimens 

 in his collection from Japan and Lifu, wdiich confii-m the 

 distinctness of this species from Mormula rissoina of 

 A. Adams *, also from Japan, to which it bears some 

 resemblance. 



I might here point out that Rissoina rex, of Pilsbry f, 

 is identical with Mormula rissoina. Evidently his speci- 

 mens had not retained their heterostroplie protoconch, and 

 consequently he was misled as regards their true generic 

 location. 



* Journ. Linn. Soc. 1863, vol, vii. p. 1 ; Smith, Ann. Natal Gov. Mus. 

 vol. i. p. 51, pi. viii. fig. 2. 



t Proc. Acad. Nat. Sci. Philad. 1904, vol.lv. p. 27, pi. iv. figi5.42, 42 a. 



