1862.] DE KONINCK INDIAN FOSSILS. 5 



articulating facet smooth. Length 5-6 centimetres; diameter 12- 15 

 millimetres. 



Among the Punjaub fossils I have met with some fragments of 

 stems which seem to have belonged to two different species of Poterio- 

 crinus, but which it has been out of my power to determine specifi- 

 cally. One of these specimens was accompanied by the Productus 

 spinulosus, Sow., the presence of which is a proof of their Carboni- 

 ferous age. 



9. Polypoba fasttjosa, De Kon. PI. I. fig. 4. (Description des Anim. 



Foss. de la Belgique, 1844, p. 7, pi. A. fig. 5.) 



I have not been able to perceive any difference between the Indian 

 specimen and those which I discovered in the Carboniferous Lime- 

 stone of the environs of Ecoussinnes. A portion of the first, acci- 

 dentally worn by some mechanical agency, has enabled me to see that 

 the pores, with which its anterior surface is ornamented, served as 

 orifices to small tubes, which are feebly incurved, have their origin 

 on the axis of the principal branches, and diverge obliquely upwards 

 on each side, as shown in the enlarged portion represented by the 

 figure, 4 a. Prom the Productus -limestone of Moosakhail ? 



10. Fenestella megastoma, De Kon. PL II. fig. 3. 



I am not more certain relative to the generic determination of this 

 species than I was of the preceding one. I place it by preference in 

 the genus Fenestella on account of its resemblance to the F. crassa of 

 M'Coy. It is composed of rays which are subparallel with each 

 other, and of which the visible surface (probably the posterior one) 

 is garnished with very small longitudinal striae, observable by means 

 of a lens, and similar to those which ornament one of the surfaces of 

 some other species. The principal branches bifurcate at intervals, 

 and are connected together by means of perpendicularly disposed, 

 transverse bars. These accessory branches have the same dimen- 

 sions as those of the principal ones. The fenestrales so pro- 

 duced are longer than wide, and their shape is that of a parallelo- 

 gram with rounded angles. Three radiating series have a length 

 of 1 centimetre. This species differs from F. crassa by the much 

 more shortened shape of its fenestrales and the distance of its prin- 

 cipal branches. 



11. Fenestella? Stkesii, De Kon. PI. I. fig. 1. 



It is with some doubt that I have placed this species in the 

 genus Fenestella. I have been led to do so from the complete ab- 

 sence of all trace of pores and striae on the surface of the specimen 

 examined, although it was perfectly well preserved. This Bryozoon 

 is fan-shaped, irregularly plaited, composed of a number of rays 

 soldered one to the other, the direction of which is indicated solely 

 by a feeble thickening, and especially by the series of small, circular 

 openings which border them. The arrangement of the openings 

 demonstrates sufficiently that the rays bifurcated once, or several 



