REPTOMTJLTICAYA. 
129 
Diagnosis. ' 
■ Zoarium massive, tuberous, with small irregular tuberosities 
on the upper surface. 
Zooecia with circular or elliptical apertures, and walls varying 
in width from one-fifth to occasionally one-half the diameter 
of the apertures. 
Dimensions. 
Diameter of zoarium , 
Specimen figured by d’Orbigny. 
36 mm. 
Distkibution. 
Xeocomian: St. Dizier and Yassy, Haute Marne. 
Affinities. 
The characters shown by Homer’s original figure suggest doubts 
whether this form is a Bryozoan, as the apertures are represented 
as angular ; but a specimen from Berklingen, D. 3647 in the 
Museum collection, that appears to be the same as Homer’s 
Alveolites tuherosa^ has the apertures small and round. 
^ The specific name tiiberosa has been used for several species which have been 
somewhat confused. Their relations may be explained by the following table : — 
Original Name. 
IIORIZO.V. 
Xame adopted. 
Alveolites tuberosa, Rom., 1839 
Xeoc. Germany 
Ceriopora tuberosa 
(Rom.), p. 165 
„ ,, d’Orb., 1854 
Xeoc. France 
Reptomulticava canui, 
Greg., p. 128 
Ceriopora ,, Hagenow, 1840 
Sen. Riigen 
Canalipora constricta 
(Rom.), p. 176 
,, ,, Michelin, 1846 
Cenom. LeMans 
R. pseudotuber osa 
(d’Orb.), p. 151 
Heteropora ,, Rom., 1839-40 
Xeoc. Germany 
Multicrescis tuberosa 
(Rom.), p. 205 
Alveolites heteropora, Rom., 1839 
Xeoc. Germany 
Reptomulticava hetero- 
pora (Rom.), p. 132 
The Radiopora heteropora, d’Orb., is the R. neocomiensis (d’Orb.), 1850. 
Heteropora tuberosa, Rom., 1840 {non 1839), was erroneously placed by d’Orbigny 
in the species here accepted as Radiopora neocomiensis (d’Orb.), 1850. 
