56 
OSCULirOIlIDJi. 
D. 3323. Three specimens (on slide). Maastrichter Kalk. Maastricht. Van 
Breda Coll. 
D. 3322. Three specimens (on slide). Maastrichter Kalk. Maastricht. Van 
Breda CoU. 
D. 3402. Two specimens (on slide). Maastrichter Kalk. Maastricht. Van 
Breda Coll. 
D. 3324. Two specimens, one showing longitudinal section and the other 
transverse sections. Maastrichter Kalk. Maastricht. Van 
Breda Coll. 
D. 3325. Many zoaria. Maastrichter Kalk. Maastricht. Van Breda Coll. 
D. 1345. Two specimens (on slide). Maastrichter Kalk. Maastricht. Vine 
Coll. 
D. 3780. A fragment (on slide). Maastrichter Kalk. Valkenberg, near 
Maastricht. Gamble Coll. Identified by M. Pergens. 
D, 6347. Five fragments (on slide). Maastrichter Kalk. Nedercanne. Busk 
Coll. Presented by Miss Busk. 
TJ^s^REPIlESEXTED SPECIES. 
campicheana, d’Orbignv, 1853. 
Syn. Cyrtopora campicheana, d’Orhigny, 1853. Bry. Cret. p. 673, pi. 761, 
figs. 14, 15. 
,, ,, Pergens, 1890. Eev. p. 377. 
Char. — Zoarium of short, thick branches (6 mm. in dia.), growing in the same 
plane. Groups of apertures very large, ^nth {fide d’Orbigny’s figures) up to 
eighteen and twenty-four apertures in a group. Surface of zoarium marked 
by conspicuous longitudinal striie. 
Distrib. — Keocomian : Sainte-Croix, Vaud. 
OSCULIPORA, cl’Orbigny, 1849. 
[Gen. nouv. Bry. : Eev. Mag. Zool. ser. 2, vol. i. p. 503.] 
Synonyms. 
Retepora, pars, Goldfuss, 1827 ; Milne -Edwards, 1838 ; vonHagenow, 1839, etc. 
Idmonea, pars, de Blainville, 1834 ; von Hagenow, 1851, etc. 
Truncatula, pars, von Hagenow, 1851; Vine, 1885 ; Pergens, 1888; Ulrich, 
1900. 
Coclophyma, pars, yon 'Ro.gewow, 1851. 
Reptofascigera, pars, d’Orhigny, 1853. . 
Diagnosis. 
Osculiporidse in which the zoarium is fixed or free, but usually 
erect and branched. The ends of the zooecia project in 
peristomal fascicles, which have their apertures in groups that 
all open on one aspect of the stem. The groups of apertures 
are circular or transversely elongate, and are placed alternately 
on the sides of the obverse face of the branches. 
