THE NAUTILUS. 141 



Polygyra hirsuta altispira Pils. 



Size large; spire high and conical; notch of the basal lip very 

 large. Alt. 7, diam. 9 mm. 



Specimens are before me from near Magnetic City (Wetherby) and 

 from the Bluck Mountains, N. C. (Hemphill). 



REMARKS ON ASTYRIS GOULDIANA. 



BY A. H. GARDNER, FORT HAMILTON, N. Y. 



In a careful examination of the Columbellidpe dredged by me 

 last summer in Long Island Sound, I find amongst specimens of 

 Astyris lunata, taken from a muddy bottom with eel grass, in 2 to 

 3 fathoms of water in Lloyd's Harbor, 3 shells which are typical 

 examples of Astyris gouldiana Agassiz in litt. {fide Stimpson) and 

 again recorded from this same locality by Mr. Sanderson Smith in 

 " The Mollusca of Long Island and its dependencies," Smith & 

 Prime. The species seems to have been considered as of doubtful 

 validity by Prof. Verrill, as in " The Invertebrate of Vineyard 

 Sound," he includes it in the synonomy of Astyris lunata, referring 

 to it as a color variety identical with the Wheatleyi of Dekay, but 

 I think the characteristics of the shell entitle it to rank as a good 

 species. 



The shells measure in length 4 to 4J mill., and have 8 whorls. 

 A. lunata rarely exceeds 8 mill, and has from 6 to 62 whorls ; in 

 Astyris gouldiana these whorls are more convex and inflated. 



The apical termination of the shell resembles that of Belemnitella 

 americana, whilst in the general outline of its whorls it is very much 

 like the well known land mollusk, Ferussacia subcylindrica. The 

 rostrum is not only much produced but is curved to such an extent 

 in two of the specimens as to give the aperture a decidedly auriform 

 appearance. The thick loosely appressed callus on the pillar lip of 

 A. lunata is represented in this shell only by a very fine glaze. 

 The specimens all exhibit clear zigzag markings of a brownish red, 

 which are more pronounced than those found on any examples of 

 A. lunata in my collection. 



The division line between the two species seems to me to be quite 

 sharp, both as regards size and form. I have seen no shells which 



