324 
MELICEKITITES. 
was founded by Ednier for three species — Ceriopora gracilis, Goldf., 
Ceriopora roemeri, Hag., and 21. porosa, Edm. The fii-st species 
was the earliest recognized, and is most conveniently accepted as 
the type species ; for it was the first on Edmer’s list, and it has 
been maintained that the other two species were synonymous with 
it. Thus, 2T. porosa, Edm., is probably only a worn fragment of 
2f. roemeri (Hag.) Horn Etigen, which Harsson, the monographer 
of the Eiigen Bryozoa, maintained to be a synonym of 21. gracilis. 
The original type of 21. gracilis is a worn fragment, with 
all the external surface obliterated. The figure is generically 
indeterminable ; but Edmer gave a figure of a specimen from 
the same locality as the type, in which the zooecial characters 
are clearly shown. That Edmer’s identification of this specimen 
was correct is proved by a specimen from Essen in the Museum 
collection. The specimen (Xo. D. 3638) is much broken externally, 
and part of the surface, as shown on Fig. 38i, agrees with Goldfriss’ 
figure ; another part of the specimen, shown on Fig. 38flr, agrees 
with Edmer’s figme. Moreover, that the main difierences between 
the Ceriopora gracilis and C. roemeri are only due to presen*ation 
is supported by the opinion of Marsson,^ who referred to the latter 
as ‘‘including the more complete specimens [of C. gracilis^, with 
the ‘ZeEdecke’ retained.” 
Hence there can be no doubt that C. gracilis, Goldf., is an Eleid; 
and the Museum collection includes one specimen with what appear 
to be ni-preserved avicularia. I had not seen this specimen when 
prepaiang the Catalogue of Jurassic Biyozoa, and accordingly 
suggested (p. 157) that 2Ieliceritites gracilis was different fr‘om 
2f. roemeri, and was only a worn Entalophorid. 
The two chief synonyms of 2£eliceritites are Eschar ites, Edm., 
which was published simultaneously, but was preoccupied by 
Schlotheim, and Vaginopora, proposed by von Hagenow in 1846. 
1. Meliceritites gracilis (Goldfuss), 1827. 
Syxoxtut. 
Ceriopora gracilis, Goldfuss, 1827. Petref. Germ. vol. i. p. 35, pi. x. fig. 11. 
,, ,, von Hageno-w, 1839. Mon. Eiig. : X. Jalirb. 1839, p.'282. 
^ Marsson. Bry. Eiig. ; Pal. Abb. vol. iv. p. 47. 
