442 W. D. Lang — Cretaceous Cheilostome Polyzoa. 



Diazeuxia simplex (d'Orb.) : Canu, "Bevision des Bryozoaires du Cr^tac6 



figures par d'Orbigny, deuxieme partie — Cheilostomata " : Bull. Soc. 



G^ol. France, ser. Ill, vol. xxviii, p. 459, 1900. Cenomanian. 

 ?non Hippothoa simplex, d'Orb. : Jukes-Browne & White, The Geology of 



the Country around Henley-on-Thames and Wallingford : Mem. Geol. 



Surv. Engi. and Wales, 1908, p. 56. M. coranguinum zone : Henley 



district. 

 Distribution. — Cenomanian : Sarthe. 



Dacryopoka gutta,' n.sp. (PL XXXIV, Figs. 4, 5.) 



Diagnosis. — Dacryoj^ora with very long fine caudse, and capitula 

 that are somewhat parallel-sided; extra-terminal front wall very flat, 

 tending to spread out on the incrusted surface ; tei'men with a pair 

 of small spines on the distal edge of the aperture and another pair at 

 the proximal-lateral corners ; intra-terminal front wall well arched, 

 sometimes, in addition, somewhat flattened laterally, often showing 

 a median ridge and in some zooecia a median crack or groove ; aperture 

 small, about one-fifth as long as the capitulum, semicircular or very 

 slightly cribrilinid ; sealed zooecia absent or rare. 



Type-specimen. — British Museum specimen D. 27932 ; Senonian, 

 zone of Micr aster cortestuditiarium. Pit west of large pit on Off ham 

 Hill, Lewes. C. P. Gaster Coll. 



Distribution. — Senonian, zone of M. cortestudinarium. Luton, 

 south-east of Chatham, Kent; in the collection of Dr. Rowe, of 

 Margate. Pit west of large pit on Offham Hill, Lewes; B.M. 

 specimens D. 27932. D. 27933 ; C. P. Gaster Coll. Cliffs between 

 Cuckmere Haven and Hope Gap, Sussex; E.M. specimens D. 27934-41 ; 

 C. P. Gaster Coll. 



Senonian, top of M. cor testtidi7iar turn zone or base of 31. corayiguinum 

 zone. Chatham, Kent; B.M. specimens D. 11409, D. 27955-63; 

 W. Gamble Coll. 



Senonian, zone of If. coranguinum. Strood, north-west of Chatham, 

 Kent ; in the collection of Dr. Rowe, of Margate. 



The above are the only specimens I have seen of what is probably 

 rather a rare form. 



Synonymy. Dacrtopora elegans (d'Orbigny). 



Hippothoa elegans, d'Orb.: d'Orbigny, Pal. Frang., Terr. Cret., vol. v, 



pi. dccxi, figs. 1-4, 1852; op. cit., p. 384, 1853 ; op. cit., p. 1092, 



1854. Cenomanian : Mans. 

 H. elegans, d'Orb. : Pictet, Traits de Pal. . . . , 2nd ed., vol. iv, p. 103, 



pi. xc, fig. 8, 1857; Cenomanian. [Figure is a copy of d'Orb., 



pi. dccxi, figs. 1-2.] 

 H. elegans: Manzoni, Sitz. d. K. Akad. Wiss. Wien, vol. Ixi, pt. i, p. 329, 



1870. Cretaceous. 

 H. elegans, d'Orb. : Vme, Quart. Journ. Geol. Soc, vol. xlvi, p. 484, 1890. 

 non Membranipora {Hippothoa) elegans, d'Orb. : Gamble, Supplementary 



List of the Bryozoa of the Chatham Chalk, p. 5, 1896. Lower Senonian: 



Chatham. [A specimen labelled by Gamble as the Hippothoa elegans 



of his list published in 1896 is a Stomatopora.] 

 Diazeuxia elegans (d'Orb.): Canu, "Revision des Bryozoaires du Cr^tace 



figures par d'Orbigny, deuxieme partie — Cheilostomata": Bull. Soc. 



Geol. France, ser. Ill, vol. xxviii, p. 459, 1900. 



^ gutta, ' a drop ' — an echo of the generic name. 



