696 MR. J. BRAZIER ON SEVEN NEW SPECIES OF HELIX. [Nov. 21, 



plate there are no horns on the sides of the head, the chin and throat 

 are black, on the sides of the throat there are two wattles or naked 

 spaces blue striped with red ; the periophthalmic region is red and 

 green ; and, lastly, on the sides of the neck there is a red patch of 

 feathers separated below from the buff colour of the breast by a 

 black line. 



In the specimen before me there are two horns well developed, one 

 on each side of the head, of a bluish colour ; the chin and throat 

 are covered with naked skin, forming a prominent fold along the 

 middle, of an orange-red colour for the greatest part, blue towards 

 the sides, and flesh-colour on the edge, from which the flesh-colour 

 protrudes with several patches on the blue ; the periophthalmic re- 

 gion is orange-red ; and on the sides of the neck the red feathers do 

 not make a patch limited below by a black line, but mix with the 

 spotted ground of the upper parts, and follow underneath the circle 

 of black feathers which fringes the naked skin of the throat. 



7. Descriptions of seven new Species of the Genus Helix, 

 and of two Fluviatile Shells from Tasmania. By 

 John Brazier, C.M.Z.S. 



[Eeceived October 30, 1871.] 



1. Helix (Pitys) architectonica. 



Shell rather widely umbilicated, depressedly orbicular, thin, glassy, 

 shining, regularly and closely arcuately ribbed, the interstices very 

 finely striated ; spire rather elevated, suture impressed ; whorls 5, 

 convex, last large, convex, descending a little in front ; base convex, 

 sculptured the same as the upper surface ; umbilicus wide, rather 

 narrow at the bottom; aperture nearly vertical, roundly lunate; 

 peristome simple, thin, acute, margins approximating. 



Diam. maj. 1|, min. \\, alt. | line. 



Hab. Near Hobart Town, Tasmania (Petterd). 



This little species is allied to Helix pexa, Cox, from New South 

 Wales. 



2. Helix (Pitys) petterdi. 



Shell widely umbilicated, depressedly circular, thin, dull brown, 

 very minutely striated throughout with lines of growth, giving it a 

 silky appearance ; spire moderately elevated, apex obtuse, suture 

 very much impressed ; whorls 5, rather convex, last not descending, 

 convex, base convex ; umbilicus nearly perspective, about one third of 

 the diameter; aperture oblique, roundly lunate ; peristome straight, 

 simple, thin, acute, margins distant. 



Diam. maj. 2 lines, min. If, alt. 1 line. 



Hab. Huon Road, near Hobart Town, Tasmania; found under 

 chips (Petterd). 



