108 HALIOTIS. 



dark brown marked with more or less perfect V-shaped green streaks, 

 green sometimes predominating. Surface spirally lirate, lirse some- 

 times unequal, about 44 in number between spire and perforations ; 

 they are rendered somewhat beaded by growth-stria? ; there are some 

 small folds radiating from the spire over the middle part of the 

 back, but these are obsolete on some examples. The spire is almost 

 terminal, very small ; whorls 2*. Inside spirally striate, somewhat 

 corrugated obliquely, very brilliantly iridescent, the prevailing 

 colors green and red. Columellar plate flattened or a little concave, 

 decidedly sloping inward, subtruncate at base, concealing the cavity 

 of spire above. Perforations 6 or 7, separated by spaces exceeding 

 the length of the holes. 



Length 54, width 35, convexity 13 mill. 



New Zealand; Australia. 



H. virginea CHEMNITZ, Syst. Conchyl. Cab. x, p. 314, t. 166, f. 

 1607, 1608. GMELIN, Syst. Nat. xiii, p. 3690. SOWERBY, Thes. 

 Conch, v, p. 20. DUNKER, Ind. Moll. Guin. Infer., t. 5, f. 6, 7, 8 

 (not of REEVE). H. gibba Phil, REEVE, Conch. Icon., f. 42. 

 SMITH, Voy. Erebus & Terror, Zool., Moll. p. 4, 1. 1, f. 16. HUTTON, 

 Manual K Z. Moll., p. 104, 1880 (not H. gibba Phil.). IT. sub- 

 mrginea WEINKAUFF, Conchyl. Cab., p. 33, t. 13, f. 7, 8; t. 17, f. 

 1,2. 



A small species having a dull brown-and-green exterior, spirally 

 lirate and with a cluster of wrinkles (well shown in fig. 9 of pi. 47). 

 Inside it is exceptionally iridescent with metallic green and red re- 

 flections. The outside sometimes has distinct V-shaped green stripes, 

 dotted with white ; and in these examples the area between the row 

 of holes and the columella has a number of vertical white bars 

 across it. I have no doubt that this is the true virginea of Chemnitz, 

 although there has been a great deal of confusion in the monographs. 

 I cannot agree with those writers who identify the form with H. 

 gibba Phil. ; for the description of that species indicates a different 

 specific type. 



H. Huttoni Filhol (Comptes Rendus xci, p. 1094) is probably a 

 variety of this. I have not seen the description. 



H. GIBBA Philippi. PI. 47, figs. 3, 4. 



In its great convexity, dark brown color and small lateral spire 

 this species is very distinct. I count about 20 elevated transverse 

 lines as far as the row of perforations, between them still smaller 



