24 NOETLING : MARINE FOSSILS FROM MIOCENE, UPPER BURMA, 



very regular revolving ribs, separated by interstices of about the 

 same breadth ; they are crossed by thinner, equidistant longitudinal 

 ribs with very regular, low tubercles on the former. 



Locality. — Very rare at Minbu. 



Remarks. — To judge from the sculpture the above species must be 

 closely allied to Cerithium pseudocorrugatum, d'Arch., but I refrain 

 from expressing a definite opinion owing to the fragmentary state of 

 the specimen. 



APORRHAIS, Sp. 



The fragment of a spire of a turriculated shell, which consists 

 of six whorls, carrying a sharp, slightly granulated keel in the centre 

 might perhaps belong to this genus. The surface of the whorls is 

 slightly concave above the keel and slopes towards the suture, 

 while it is flat and perpendicular below it. 



Locality. — Rare at Yenangyat. 



Remarks. — This specimen agrees so well with d'Archiac's Cerit- 

 hium % spec, indet. plate XXVIII, fig. 16, that I am convinced that 

 both represent the^ same species ; however, nothing definite can 

 be said owing to the incompleteness of the specimen. 



STROMBUS NODOSUS, Sow., Plate V, Fig. 11. 



1840. Strombus nodosus, Sowerby, Transactions, Geolog. Soc. of London, 2nd series> 



vol. V, Plate XXVI, fig. 10. 



1853. Strombus nodosus, d'Archrac and Haime, Descr. des Anim. foss. du groupe 



nummulitique de I'Inde, page 316, plate XXX, figs. 20 and 21 

 (Non fig. 18 I ) 



The specimens found by me are unfortunately rather mutilated, 

 so that their generic identity is not quite certain ; they exhibit, 

 however, such features that I think they must be identical with the 

 species quoted above. The shell is pear-shaped, and consists of flat 

 whorls which form a rather elevated spire ; along the edge they are 

 set with a line of nodules which gradually grow into short, blunt 

 spines. The whole surface is covered with fine revolving ribs of 

 which stronger and finer ones alternate rather regularly. 

 ( 24 ) 



