22 CALYCIA. 



Fig. 16 is a copy of Reeve's type figure ; fig. 18 from Tapparone- 

 Canefri, and fig. 17 after von Martens, from a small specimen from 

 Maccluer Gulf. 



Wallace found it ** on tree trunks, the animal green," on Waighiu 

 island. Sohacko, who investigated dried specimens, states that the 

 mantle is light blue, columellar margin blue-reddish, the foot yellow 

 and brown. The radula has the formula 350.1.350, with 174 rows 

 of teeth. 



A specimen of C. crystallina has been leported from the Moluccas 

 by Tapperone Canefri, on the authority of L. M. D'Albertis. It 

 may have been carried there by natives, whose trading journeys 

 cover this whole region. 



Var. gracilior Martens. Shell imperforate, oblong-conoid, the 

 spiral sulci less close and a little stronger, angle of the last whorl 

 almost wanting, columellar margin white, flatly appressed. Length 

 45, diam. 27, length of aperture 27, width 17 mill. (Martens). 



Sekar, New Guinea (Ribbe). 



G. ISSELLIANA Tapparone Canefri. PI. 4, figs. 19, 20. 



Shell imperforate, ovate-conic, rather solid, longitudinally striate, 

 decussated by numerous and irregular impressed spiral sulci, glassy- 

 white, the sulci opttqae, milk-white. Spire conic, the apex densely 

 punctate, rather obtuse. Whorls 5^, subconvex, separated by a deep 

 suture, the last whorl large, exceeding the height of the spire, a little 

 constricted a short distance below the suture, and very obtusely, very 

 obsoletely subangular below the middle. Aperture oblique, oval, 

 indistinctly quadrangular ; columella narrow, brownish, reflexed 

 above ; peristome simple, unexpanded. Length 42, diam. 28 mill. 

 (T. 0.) 



New Guinea: Katow River, on the south coast (D'Albertis). 



Calycia isselliana T. C., Annali Mus. Civ. di Genova, xix, p. 101, 

 f. b, c (1883). HEDLEY, P. L. S., N. S. W. (2), vi, p. 97. 



Differs from C. crystallina in the less elongate form, fewer and 

 opaque white spiral sulci, more convex whorls and deeper suture. 



C. EVERETTI Smith. PI. 4, fig. 21. 



Shell ovate-conic, angulate at the periphery, narrowly perforate ; 

 pellucid whitej covered with a glossy greenish cuticle ; spire conic, 

 papillose at the apex; whorls 5^, rapidly increasing, the earlier 2 or 



