ZONITES. 193 



Yar. INTERMISSA, Mousson. Fig. 47. 



Whorls more compressed, flattened below. 



H. PONTICA, Bottger. PL 58, figs. 48-50. 



Narrowly nmbilicated, thin shining, dark fulvous corneous, 

 whitish below ; whorls 6^, striate above, with a sutural margin, 

 smooth below, narrow, base rounded. Diam. 19 mill. 



Coast between Lit chin and Ponti, Black Sea. 



Is perhaps a synonym of the preceding species. 



H. RETICULATA, Bottger. PI. 58, figs. 51-53. 



Like H. Mingrelica, but strongly spirally sulcate throughout, 

 moderate!}" umbilicated, chestnut corneous above, greenish 

 below; whorls 6 J, closely rugulosely striate, suture with a white 



thread-like margin. Diam. 23 mill. 



Caucasia. 

 H. SUANETICA, Bottger. PL 58, figs. 54-56. 



Narrowly umbilicated, thin, very shining, brownish amber- 

 color, base white; whorls 5j, a little convex, regularly increas- 

 ing, obsoletely striulate, more distinctly so at the white-margined 

 suture, with close light spiral lines, last whorl subdilated, double 

 the width of the penultimate, and high in proportion to its 



width. Diam. 19*5 mill. 



Caucasia. 

 n. SUCCTNACIA, Bottger. PL 59, figs. 57-59. 



Like the preceding, but larger, more widely umbilicated, more 

 depressed, very thin, yellowish amber-color; whorls 6, more 

 slowly increasing, the suture less impressed, stride more obsolete, 



last whorl wider in proportion to its height. Diam. 20'5 mill. 



Caucasia. 

 H. SELECTA, Mousson. PL 59, figs. 60-62. 



Moderate!}" umbilicated, thin, lightly densely striate, shining, 

 whitish corneous ; whorls 6, scarcely convex, the last a little 



dilated at the aperture. Diam. 21 mill. 



Kutais, Transcaucasia. 

 H. SiMONr, Bottger. PL 59, figs. 63-65. 



Rather narrowly umbilicated, thin, shining, corneous-white; 

 whorls 6, scarcely convex, rather rapidly increasing, densely 

 irregularly striulate, last whorl double the width of the penulti- 

 mate, planate below. Diam. 22 mill. Syria. 

 13 



