322 ZOOPHYTOLOGY. 



Ceriopora oculata, Goldf. (Petref. Germ., PI. LXIV., fig. 14, 

 p. 217), from the transition limestone, may be included 

 in it. 



Cellaria dupUcata, Eeuss, 1. c, p. 62, T. vii., fig. 34. 

 ,, labrosa, Reuss, 1. c, p. 63, T. vii., fig. 35. 

 ,, MicheUni, Reuss, 1. c, p. 61, T. viii., figs. 1 and 2. 



(^Vi)icularia frag His? Defrance), also in the Paris basin 

 (Michelin, p. 46). 

 ,, coronata, Renss, 1. c, p. 62, T. viii., fig. 3. 

 „ scrobiculata , Reuss, 1. c, p. 63, T. viii., fig. 4. 

 „ Schreibersi, Reuss, 1. c, p. 63, T. viii., fig. 8. 

 ,, Haiieri, Reuss, 1. c, p. 63, T. viii., fig. 9. 

 ., stenosticha, Reuss, 1. c, p. 64, T. viii., fig. 10. 



We have here also given the figures of a species of Eschara, 

 which would seem to correspond very closely with the Mille- 

 pora cervicornis of Ellis and Solander, or with the Eschara 

 cervicornis of Lamarck (An. s. Vert., 2nd ed., t. ii., p. 267), 

 though not to that described by M. Edwards (ySur les Esckares, 

 p. 15, PI. I. and PI. II., fig. 1), under the same name, from 

 which it is undoubtedly different, as it is also from the 

 E. cervicornis in the British Museum Catalogue. Neither 

 does it correspond with the E. gracilis of Milne-Edwards. 

 From the former it differs widely in the shape of the mouth, 

 and in its tubular projection, and from the latter in the 

 absence of the median pore, and of punctation of the surface 

 of the cells 



But as I have not been able to refer to Marsigli's figure 

 (Hist, de la Mer., tab. xxxii., fig. 152), with which Ellis and 

 Solander's Millepora cervicornis is said exactly to agree, I find 

 it impossible at present to come to a definite conclusion in 

 the matter. 



Provisionally, it would seem right to regard the present 

 form as the true Millepora {Eschara) cervicornis of Ellis and 

 Solander, and it might be thus characterized : — 



E. cervicornis, Solander. PI. IV., figs. 4, 5, 6. 

 E. ramosa, ramis subcylindraceis per angustis ; osculis prominalis tubu- 

 losis ; labio inferiori, medio denticulate. 

 Hab. ^gean Sea. E. Forbes. 



The polyzoary is composed of slender, cylindrical branches, 

 in the older and thicker parts of which the cells become 

 deeply immersed, and the mouth appears like a raised nipple, 

 but within it may always be perceived the median denticle on 

 the lower lip. 



