W. D. Lang — Cretaceous Cheilostome Polyzoa. 443 



?non Memhranipora {Hippothoa) elegans, d'Orb. : Jukes-Browne, The 

 Cretaceous Rocks of Britain, vol. iii, The Upper Chalk of England (Mem. 

 Geol. Surv. United Kingdom), p. 491, 1904. ill. cortestudinarium zone : 

 Charlton. 

 Bisirihution. — Cenomanian : Le Mans, Sartiie, France. 

 Remarks. — The aperture in d'Orbigny's figure appears to be circular, 

 as it does in Eeuss' figure of Escliarina dispersa. These two species 

 are here provisionally placed in Bacryopora on the assumption that 

 the apertures are subcircular or semicircular, with a tendency to 

 a cribrilinid shape. 



Synonymy. Dacryopoiu reusst, new name, 



Escharina dispersa (v. Hagenow) : Reuss, Die Versteinerungen der 



Bohmischcn Kreideformation, pt. ii, p. 67, pi. xv, fig. 26, 1846. 



Lower Pliinerkalk : Scbillinge, bei Bilin, Bohemia, 

 non Cellepora dispersa: Hagenow, Neues Jahrbuch, Jahrg. 1839, p. 280 ; 



Eiigen. 

 Escharina dispersa, Eeuss : Bronn, Index Palceontologicus ... A. Nomen- 



clator Palseontologicus, p. 472, 1848. 

 E. dispersa, Reuss : Bronn, Index Palceontologicus . . . B. Enumerator 



Palseontologicus, p. 131, 1849 ; Kreide. 

 Pyripora [EschaHna'] dispersa, Eeuss : d'Orbigny, Prodrome de Pal. . . , 



vol. ii, p. 263, 1850. Senonian : Bilin, Bohemia. 

 7 Escharina dispersa, Eeuss: Morris, A Catalogue of British Fossils, 



2nd ed., p. 123, 1854. Chalk detritus : Charing, Kent ; Harris Coll. 

 '> Microporella dispersa, Eeuss: Vine, Proc. Yorks. Geol. Soc, vol. xi, 



pt. ii, p. 259, 1890. Upper Greensand : fide Morris, 1854. 

 ? Escharina dispersa, 'Reuss : Vine, Eep. Brit. Assoc. 1890, p. 391, 1891. 



Chalk detritus: Charing, Kent ; fide Morris, 1854. 

 7 E. disptersa, Reuss: Vine, Proc. Yorks. Geol. Soc, N.S., vol. xii, pt. ii, 



p. 158, 1892. Chalk detritus : Charing, Kent ; fide Morris, 1854. 



Distribution.— Cenomaniau, Lower Pljinerkalk : Scbillinge, near 

 Bilin, Bohemia. 



Remarks. — See under D. elegaiis (d'Orbigny). 



Key to the Genera described in this Paper, including Herpetopora. 



A. Calcareous portion of intra-terminal front wall confined to a narrow 



bevel. 

 I. No avicularia present. 



a. Terraen plain Herpetopora. 



h. Termen beaded .... Allantopora. 



II. Avicularia present ; terraen beaded . Marssonopora. 



B. Intra-terminal front wall entirely calcareous . Bacryopora. 



Pjg EXPLANATION OF PLATE XXXIV. 



1. Allantopora irregularis (Gabb & Horn). Two zoceeia of a zoarium 



encrusting Coscinopleura digitata (Morton). X about 35 diameters. 

 British Museum specimen No. D. 19186. Danian, Vincentown, Limesand. 

 Near Blackwoods Town, New Jersey, U.S.A. 



2. Allantopora stomatoporoidcs, n..sp. A piece of zoarium showing bilateral 



branching which is somewhat irregular in the more distal zooecium. 

 X about 35 diameters. The type-specimen ; British Museum specimen 

 No. D. 9110. Danian. Faxe, Seeland, Denmark. Caroline Birley Coll. 

 The poor i^reservation of the specimen, which is of a crystalline, granular 

 consistency, makes it impossible to show greater detail. 



