THE NAUTILUS. 1J3 



genus Scyphomya some years ago. It is entirely distinct from 

 Martesia and nearer Zirfaea in some of its characters, but very dis- 

 tinct from either. I have Carolinian specimens, but the shell ap- 

 pears to be rare." 



The genus Scyphomya was proposed in the Trans. Wagner Free 

 Inst. Science, vol. iii, pt. iv, p. 822, 1898, and while I "consulted 

 this work I overlooked it from the fact that Dr. Dall places this 

 genus in the sub-family Teredininae, and I only went over that por- 

 tion pertaining to the genus Martesia. From the original descrip- 

 tion, and the figure alone one would feel doubtful in defining the 

 species. I therefore followed Tryon and left it in the synonymy 

 under M. striata. 



NOTES ON SOME PREOCCUPIED NAMES OF MOLLUSKS. 



BY W. H. DALL. 



Prof. Cockerell has kindly called my attention to the fact that the 

 name Parmulina proposed by me Oct. 1, 1902, for a section of Circe, 

 had been used in the same year for a Rhizopod by Penard. Investi-' 

 gation showing that the latter author had several months' precedence 

 in publication, the name Parmidophora is proposed for the mollusk. 



In the same work in which Parmulina was proposed, I note the 

 overworked name of Qiiadrula used for a Rhizopod. Rafinesque 

 precedes all others in the use of this name, which he applied to a 

 naiad, but it has been used for a Rhizopod, an insect and a crusta- 

 cean. 



I noticed while looking up the data in the case of Parmulina, that 

 the name Pa<me//a, applied in 1870 by me to Patella tnagelkmica and 

 its allies, had been previously used by Gray, in 1848, for a polyp. 

 In place of it for the. limpet, I suggest Patinigera. 



A NEW OREOHELIX. 



BT T. D. A. COCKERELL. 



Oreohelix strigosa metcalfei, n. subsp. 



Shell with max. diam. 20 to 21 mm., alt. about 11 mm.; periphery 

 with a strong but rather obtuse keel, just below which is a single 

 brown band ; umbilicus broad, not contracting rapidly within ; tie 



