282 
HAMMIA. 
Affinities. 
This name is proposed instead of Stigmatopora, which is pre- 
occupied for a Lophohranch fish.^ The genus was well described 
by Hamm, who referred to its spirally ridged zoariiim, which is 
its main difference from Entalophora. Goldfiiss’ figure did not 
show this structure, and accordingly d’Orbigny gave the specific 
name to specimens now included in Entalopliora madreporacca. 
Hamm used this genus as the type of a group, the Stigmatoporina, 
characterized by the axial bundle of fine proximal portions of tho 
zooecia. Marsson^ has remarked the artificial nature of the group 
of Bryozoa associated on this character. 
The type species has some zoarial resemblance to Sparsicavea 
undulata, hut Marsson states the absence of ‘ Xebenzcllen ’ as 
one of the characters of his group, the Stigmatoporina ; and no 
cancelli are shown in the longitudinal section of H. pustidosa 
figured on p. 283. 
Hammia pustulosa (Goldfuss), 1827. 
Synonymy. 
Ceriopora pustulosa, Goldfuss, 1827. Petref. Germ. vol. i. p. 37, pi. xi. fig. 3. 
,, ,, Morren, 1829. Cor. foss. Belg. : Ann. Acc. Groning. 1828, 
p. 41. 
non ,, ,, Michelin, 1845. Icon. Zoopli. p. 211, pi. liii. fig. 4. 
Pustulopora ,, de Blainville, 1830. Zooph. : Diet. Sci. Xat. vol. lx. p. 383. 
,, ,, de Blainville, 1834. Man. Act. p. 418. 
,, ,, M. Edwards, 1836. In Lamarck, Hist. Xat., 2nd ed., 
vol. ii. p. 314. 
,, ,, von Hagenow, 1850. In Geinitz, Quadersandst. p. 236. 
no7z ,, ,, Lonsdale, 1850. In Dixon, Geol. Suss. p. 288. 
,, ,, von Hagenow, 1851. Bry. Maastr. Kr. p. 18, pi. i. fig. 7. 
? ,, Kade, 1852. Los. A^erst. Schanzenb. p. 31. 
non ,, ,, d’Orbigny, 1853-4. Bry. Cret. p. 795, pi. 755, figs. 1-3. 
Entalopliora ,, Staring, 1860. Bod. Xederl. vol. ii. p. 402. 
,, ,, Brauns, 1875. Sen. Salzb. : Zeit. Ges. Xatiu’w. vol. xlvi. 
p. 401. 
„ ,, Pergens, 1888. Age tuf. Ciply : Bull. Soc. beige Geol. 
vol. i. p. 205. 
^ F. Kaup. Uebersiebt der Lopbobranebier : Arcb. Xaturges. vol. xix. 1853, 
p. 233. 
2 Marsson. Bry. Biig. : Pal. Abb. vol. iv. p. 7. 
