﻿Yol. 64.] GEOLOGY or BT7EMA. 631 



Grossier of the Paris Basin, agrees closely iu shape and general 

 characters, hut it is larger and has more rounded ribs than 

 G. Martinianus. 

 Locality. — 2 miles south of Mindegyi (Thayetmyo district). 



Pamily Fusid^. 



Melongei^a psetjdobtjcephala (Noetling). 



1901. Fyrula pseudohucephala, Noetling, Pal. Ind. n. s. vol. i, no. 3, p. 318 & pi. xxi, 

 figs. 5-6. 



E-emarks. — The reasons for adopting Ilelongena, Schumacher, 

 in place of Pyrula for the group of shells which includes Melongena 

 bucepJiala, Lamarck, and hence 2L jpseudohucephala (Noetling) also, 

 are fully discussed by Tryon,^ and that author's nomenclature is 

 here adopted. 



Locality. — 10 miles north of Yenangyat (Pakokku district). 



BusTcoN CANALicuLATUM (Linn.). (PI. LY, fig. 2.) 



1766. Murex eanaliculatus, Liun. ' Syst. Nat.' 12th ed. vol. i, p. 1222. 



Description. — The shell is ill-preserved, but the height of the 

 part remaining is not less than 60 millimetres, and therefore the 

 whole must have attained a considerable size. It is robust and 

 pyriform, with an elongate canal, composed of a turretted spire 

 and a large body-whorl. 



Spire of five (or six) angular whorls with deeply-canaliculate 

 sutures ; ornamented with two stout revolving keels, from the 

 posterior of which the surface slopes steeply upwards, while from 

 the anterior keel it descends almost vertically to the suture. The 

 body-whorl is large, angular posteriorly, rounded and possessing a 

 long canal anteriorly ; the inner lip is somewhat callous ; it is 

 curved in section. 



Remarks. — Busy con, Bolten, 1798, is here adopted in place of 

 the later name Fulgur, Montfort, since the species quoted by the 

 first author ^ are all included by Tryon ^ in the genus Fulgur. A 

 comparison with the recent species (in the British Museum) leaves 

 no doubt of the identity with it of this shell ; while, so far as can 

 be judged from the figure, the Sycum (?) canaliculatum (Bellardi),* 

 from the Tongrian of Liguria, may be an allied form, since its 

 characters are rather those of Busycon than of Sycum. 



Locality. — Letpan choung, 10 miles east of Sawmyo (Pakokku 

 district). 



^ 'Structural & Systematic Conchology ' Philadelphia, vol. ii (1883) pp. 134-35, 

 " ' Museum Bolteniaaum * Hamburg, 1798, p. 149. 



^ * Structural & Systematic Conchology' Philadelphia, vol. ii (1883) p. 138. 

 * ' Molluschi Terziarii del Piemonte, &c.' vol. i (1873) p. 155 & pi. x, fig. 6- 

 and Cossraann, ' Essais de Paleoconchologie Coraparee ' livr. iv (1901) p. 81. 



