SELTSCOTHON.— CHENENDOPOEA. 33 



The vertical lamellae are 0'3 mm. in width and about 0"5 mm. apart. These 

 lamellae are formed of extremely delicate, elongated branching and spinous spicules, 

 which are interlocked together. In the Flamborough specimen these spicules are 

 undistinguishable ; those figured are from a specimen from Hanover. 



The only example from Flamborough differs from the type of Rcemer in possessing 

 rounded margins and a somewhat thinner plate, but resembles it in form, in the size 

 of the apertures of the upper surface, and in the furrowed dermal layer. From 

 S. planus this species is readily distinguished by its furrowed upper surface, the 

 smaller and less closely disposed apertures, and the more delicate character of the 

 vertical lamellte. 



Distribution. Upper Chalk : Flamborough, Yorkshire ; Ahlten, Hanover {ZitteVs 

 coll.). 



Seliscothon mantelli, Goldf. sp. 



1833. Scyphia mantelli, Goldfuss, Petref. Th. 1, p. 219, t. 65. f. 5. 

 1878. Scyphia mantelli, Quenst. Petref. Bd. 5, p. 375, t. 133. f. 4. 

 1878. Seliscothon mantelli, Zitt. Stud. II Ab. p. 54, t. 4. f. 3. 



Microscopic slides with spicules of this species. 

 Distribution. Coesfeld, Westphalia. 



Seliscothon testa-flokum, Quenst. sp. 

 1878. Scyphia iesta-florum, Quenst. Petref. Bd. 5, p. 377, t. 135. f. 7. 

 Distribution. Upper Chalk : Sudmerberg. 



Seliscothon giganteus, Rcemer, sp. 



1864. Cupulospongia giyantea, Roemer, Palseont. Bd. 13, p. 51, t. 18. f. 1. 

 1878. Seliscothon giganteum, Zitt. Stud. II Ab. p. 54, t. 4. £. 4. 



Distribution. Craie Chloritee : Vaches Noires, Havre. 



Seliscothon, sp. 

 Distribution. Upper Chalk : Sudmerberg ; Goslar, 



Genus CHENENDOPORA, Lamx., 1821. 

 Chenendopoea fungiformis, Lamx. 



1821. Chenendopora fungiformis , Lamx. Expos, method, des genres de I'ordre des polypiers, 



p. 77, t. 75. f. 9, 10. 

 1808. Funnel-formed Alcyonite, Parkinson, Org. Rem. vol. ii. t. 11. f. 5. 

 1847. Chenendopora fungiformis , MicheUn, Icon. Zooph. p. 130, t. 34. f. 3. 

 1861. Bicupula lata, Courtiller, Eponges fossiles, p. 139, t. 37. f. 1. 

 1878. Chenendopora fungiformis, Zitt. Stud. II Ab. p. 55, t. 3. f. 13, 14. 



F 



