1 i O ZONITIDiE. 



kalc-sac, a long spermatheca, and a large dart-sac or amatorial 

 organ. The formula for the radula is : 42 . 2 . 10 . 1 . 10 . 2 . 42 

 (54 . 1 . 54). [The jaw has no central projection.] 



[External characters, such as the shell-lobes present, led me in 

 1898 (Mol. Ind.) to place this species in Maerocldamys, but it 

 differs in many respects from the typical Indian species of that 

 genus. Further material received since has shown the internal 

 anatomy to be very different. 



The penis-sheath enlarges upwards from the generative aper- 

 ture to the broad, rather flat, and long retractor muscle. The 

 epi phallus is long, and where it is joined by the vas deferens 

 a kalk-sac nearly as long is given ofl^. Within the length of the 

 epipliallus in this specimen a spermatophore was in an advanced 

 stage of development, the sac of which is indicated by the swelling 

 close to the vas deferens. The spermatheca is very long, a 

 narrow tube swelling into an elongate, pear-shaped, thin-walled 

 sac. This contained a single perfectly formed spermatophore. 

 The amatorial organ is very large and thickened, the free end 

 terminating in a very blunt globose knob. The rest of the 

 generative organs do not call for any special mention. 



The spermatophore differs in detail from any I have yet been 

 fortunate to come across {vide spermatheca, tig. 84, B); the flume is 

 very long, quite free of spines on the side, 2 or 3 large ones only 

 at the base of the capsule, which is elongately oval, with very 

 transparent sides and Avith the usual cap-like terminal end. It is 

 thus on the mould of spermatophores of species of the genera 

 Oirasia and Austenia &c., but shows very interesting variation in 

 minor detail, supporting the conclusion I have arrived at, that 

 this species resplendens cannot be retained in MacrocMamys, but 

 forms a good aud distinct genus. 



The animals of resphndens and of the Siamese species S.pumicata, 

 Morelet, are much nearer that of Xesta type citrina, but the concho- 

 logical differences are very great. The closely-wound depressed 

 shell of resplendens and its allies presents characters which cannot 

 be overlooked, and they help considerably in separating this group 

 of the Zonitidse fi'om MacrocMamys on one hand and Xcsta on 

 the other.] 



Hanley's figure (C. I. pi. 51, fig. 4) agrees fairly with Pfeiffer's 

 aud would appear to be some other species. Eeeve's figure 

 (Conch. Ic. no. 430) is something different. Many different 

 shells are found in various collections under this name. The 

 description above is from a Mergui specimen in Col. Godwin- 

 Austen's Collection. 



448. Sarika burmana, Pfr. (Helix) P. Z. S. 1857, p. 107 ; id. Mon. 

 Hel. iv, 1859, p. 42 ; H. 8f T. (Helix) C. I. 1876, p. vii. 

 Helix acerra, Bs. A. 31. N. H. (3) iii, 1859, p. 389; Pfr. Mon. 

 Hel V, 1868, p. 100 ; H. 4; T. C. I. 1876, pi. 51, fig. 2 ; v. Mart. 

 (Macrochlamys) Jour. Li7in. Sac. xxi, 1889, p. 162 ; Kobelt 

 (Macrocblatnys), Mart. ${ Chonn. Syst. Conch.-Cab. ed. 2, 1901, 

 Naninidaj, p. "1020, pi. 263, fig. 1. 



