24 Neiv Species from Loiver Carboniferous of Bally castle. 



Gil. laguessiana J)e Kon.'^ is smaller, has its greatest width at 

 the cardinal edge, has only four spines on each side of the umbo, 

 and its costae are " a peine visibles a I'oeil nu ". 



Gh. dalmaniana De Kon.^ differs in its greater size, more numerous 

 spines, and acute cardinal angles. 



TahuUjJora serrata, sp. nov. (PI. Ill, Figs, ba-h.) 



Solid, cylindrical, branching zoarium, 3 to 9 mm. thick. Agrees 

 most closely with T. muUitahulata G. W. Lee, but differs from that 

 species as follows : — ■ 



1. Walls of peripheral part seldom as thick as zooecia] diameter. 



2. Moniliform structure frequent. 



3. Stereoj)lasm banked up against the distal faces of the tabulae, 

 giving them in longitudinal median section the appearance of thorns, 

 or saw-teeth. This suggested the specific name. 



4. Tabulae generally convex towards the mouths of the zooecia. 



5. Acanthopores not differentiated into two sets. 



Holotype. — A specimen (wholly used up in making three slices — 

 radial, tangential, and transverse) on a micro-slide in the collection 

 of the Geological Survey of Ireland. 



Locality. — Common in the main limestone and associated shales 

 at North Star Colliery, 1|- miles east of Ballycastle. 



? Garcinophyllum s]). (Plate III, Figs. 6a- 6.) 

 As only one imperfect specimen of this species was found I have 

 not given it a name. It is a very small coral, with " roots " arising 

 in whorls. After being photographed it was cut into six transverse 

 slices. Fig. 66 is a drawing of section 4, which passes through one 

 of the " roots ". 



EXPLANATION OF PLATE III. 

 New Species from Da of Ballycastle. 

 Figs, ia-d and 6a are from photographs ; the remainder are from camera 

 lucida drawings. 



Fig. 1. — Cypricardella nuculoides, sp. nov. Type-specimen. x 1"5. la, 

 right side ; lb, anterior view ; Ic, dorsal view. 

 ,, 2.— Cypricardella nuculoides, sp. nov. Hinge of left valve of another 



specimen. x 1"5. 

 ,, 3. — Protoschizodus brevifrons, sp. nov. Type specimen. x 1'5. 3a, 



left side ; 36, outline of posterior view ; 3c, dorsal view. 

 ,, 4. — Chonetes elegans, sp. nov. x 1-2. 4a, pedicle valve, showing 

 sulcus ; type specimen. 46, pedicle valve of another specimen ; 

 sulcus scarcely developed. 4c, interior of brachial valve of a third 

 specimen, id, interior of brachial valve of a fourth specimen. 

 Note, the left-hand member of the pair of ridges (M in Text-fig. 1) 

 close to median ridge is, in this case, extremely short. 

 ,, 5. — Tabuli2:)ora serrata, sp. nov. Type specimen. x 17"5. 5a, 

 portion of radial section, showing two acanthopores. 56, portion of 

 tangential section. 

 ,, 6. — ?Carcinophyll'U7n, sp. 6a, general view, showing whorls of " roots ". 

 X 1-7. 66, tranverse section along plane 4 of previous figure, passing 

 through one of the " roots ". x 3 '2. 



^ Recherches sur les Animaux Fossiles, L. De Koninck, Liege, 1847, p. 198. 

 ^ Log. cit., p. 193. 



