W. D. Lang — Cretaceous Clieilostoine Polyzoa. 439 



Makssonopora dispkrsa (Hagenow). (PI. XXXIV, Fig. 3.) 

 Synonymy . 



Cellepora dispersa, nob, : Hagenow, " Monograpliie der Eiigen'sclien Kreide- 



Versteinerungen, Abt. i, Phytolitben und Polyparien " : Neues Jabrb. f. 



Min., etc., Jabrgang, 1839, p. 280; Riigen. 

 Aulopora dispersa, v. Hag. : Geinitz, Grundriss der Versteinerungskunde, 



p. 629, pi. xxiii6, fig. 55, 1846 ; Obere Kreide : Kiigen. [Figure sbows tbe 



avicularia.] 

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



Bohmischen Kreide formation, pt. ii, p. 67, pi. xv, fig. 26, 1846. 



[ = Dacryopora reussi, seep. 443.] 

 Cellepora dispersa, v. Hg. : Boll, Geognosie der deutschen Ostseeldnder 



zwischen Eider und Oder, Oberer Weisse Kreide, p. 207, 1846. 

 '> Hippothoa laxata, d'Orb. : d'Orbigny, Pa/. i^m«c-. Terr. Grit., torn, v, 



1852, pi. dccxi, figs. 12-15 ; 1853, p. 386 ; 1854, p. 1097. Senonian : 



Meudon, Tours. [Marsson (op. cit. infra, p. 91) gives tbis species as 



a synonym of Cellepora dispersa, but, judging from the figure, it more 



resembles a Herpetopora with sealed zooecia.] 

 H. [Aulopora^ dispersa: d'Orbigny, 1853, op. cit., p. 383; Craie s^nonienne 



de Riigen. 

 H. \^Aulopora'] dispersa, Hagenow : Pictet, Traitd de PaUontologie . . . 



vol. iv, 2nd ed., p. 103, 1857. Craie : Eiigen. 

 non H. labiata: NovAk, " Beitrag zurKenntniss der Bryozoen der bohmischen 



Kreideformation " : Denk. Akad. Wiss. Wien, vol. xxxvii, pt. ii, p. 86, 



pi. iii, figs. 1-5, 1877, as stated by Marsson, 1887, op. cit. infra, p. 91. 



\_ = Herpetojoora labiata.'\ 

 H. dispersa, v. Hagenow sp. : Marsson, "Die Bryozoen der Weissen 



Schreibkreide der Insel Eiigen " : Pal. Abh., vol. iv, pt. i, p. 91, pi. ix, 



fig. 9, 1887 ; Eiigen. 

 ?non H. dispersa, Hagenow: Vine, "Fossil Polyzoa; further additions 



, . . " : Proc. Yorkshire Geol. Soc, N.S., vol. xii, pt. ii, p. 155, 1892 ; 



Chatham, Salisbury, and Norfolk. [Probably the Chatham specimens 



are Herpetopora anglica and the others H. clavigera.'} 

 ?non Membranipora dispersa. Hag. : Vine, "Eeport of the Committee . . . 



on the Cretaceous Polyzoa" : Eep. Brit. Assoc, for 1892, pp. 316, 322, 



335, 1893. Coranguinuvi and quadratus zones : Chatham and East 



Harnham. [For probable identities see last entry.] 

 r\on = Crista Johnstoniana : Mantell, The Medals of Creation, vol. i, p. 285, 



text-fig. 64 on p. 284, fig. 10, 1844 ; as stated by Vine, 1893, op. cit., 



p. 316. 

 ? non Membranipora dispersa, Marss. : Jukes-Browne, The Cretaceous Rocks 



of Britain, vol. iii, The Upper Chalk of England (Mem. Geol. Surv. 



United Kingdom), p. 491, 1904. Cortestudinarium zone, Charlton, and 



quadratus zone, Salisbury. [Probably the record from the former 



horizon is Herpetopora anglica and, from the latter, H. clavigera.'] 

 ? M. dispersa, Hag.: Jukes-Browne, op. cit., pp. 268, 491, 1904. Ostrea 



lunata zone : Trimingham, Norfolk. 

 non Hippothoa dispersa, Hagenow: Chatwin & Withers, "The Zones of 

 Chalk . . . between Goring and Shiplake " : Proc. Geol. Assoc, 

 vol. XX, pt. V, pp. 394, 416, 1908. Terebratulina zone : Gatehampton, 

 Oxon. [Tbe specimen on which this record is founded, British Museum 

 specimen D. 20611, is Herpetopora anglica.'] 



Diagnosis. — Marssonopora in which the caudal portions of the zooeci:i 

 are very long and the capitular portions are pear-shaped ; termen 

 bearing seventeen or eighteen beads decreasing in size distally, in 

 continuous series proxiinally, but absent from the extreme distal 

 edge ; extra-terminal front wall well developed proximally ; aperture 



