M. K. A. Zittel 071 Fossil LitMstidw. 335 



badly characterized species under the above-cited generic 

 names. At present Cretaceous species only are known. 



1. Chenendopora fungiformis, Lamx. I. c. ; Guettard, Mem. 

 tome iii. pi. ix. fig. 1 ; Park. Org. Rem. ii. pi. xi. fig. 5 ; 

 Mich. Ic. p. 130, pi. xxxiv. fig. 3 (non fig. 2). 



To this or some nearly allied species belong the following 

 forms described by Courtiller from the neighbourhood of 

 Saumur : — 



a. Bicupula gratiosa^ capitata^ compressa^ clavata, eoccavata, 

 auricula J prolif era J paterceformis^ lata, sinuata, conica, Court, 

 pis. xxxv.-xxxvii. 



b. Platispongia speculum, discus, verticalis, rupa, ohliqua, 

 Court, p]. xxxviii. 



c. Gupulospongia gloriierata, contorta, infundihulum, elegans, 

 terebrata, Court, pi. xxxix. 



2. ScypMa terebrata, Mich. Ic. xxix. 4. Senonian. 



3. Chenendopora pateroiformis, Mich. ib. xxxvii. 2. Se- 

 nonian. 



4. Chenendopora pocillum, Mich. ib. xxxiii. 5. Senonian. 

 Jerea arborescens, Mich. p. p. Icon. xlii. fig. 23 (non 2 «), is 



the root of a Chenendopora. 



Probably closely allied to Chenendopora are : — 



Pgecilospongia, Court. 



(Ep. p. 9.) 



" Sponge cup-shaped, with the aperture more or less nar- 

 rowed. Central cavity irregular, furnished with horizontal 

 striae or furrows and oscula. Outer surface uneven, often de- 

 pressed ; oscula chiefly placed in these depressions." Upper 

 Cretaceous, Touraine. 



DiMORPHA, Court. 

 (Ep..p. 7.) 

 Tragalimus^ Dimorpha^ Elasmalimus, Pom. 



" Lower part like Cupxdospongia. Inner surface of the 

 margin of the cup forming dilatations of various forms, which 

 alone bear oscula on the outer surface, and nearly always unite 

 by their upper parts, leaving only one or two small apertures 

 at the vertex." Upper Cretaceous. Touraine. 



Arabescula, Carter. 

 (Ann. & Ma<^. Nat. Hist. ser. 4, vol. xii. p. 464, pi. xvii. figs. 7-0.) 

 {Recent.) Sponge thin, incrusting ; surface with pores and 

 fine furrows. Skeleton consisting of curved, branched, fili- 



