450 DR. G. J. HINDE ON NEW FOSSILS [Aug. 1896, 



of Uunicites, which is smaller and more slender than that of the 

 form here described. 



The present specimen was discovered in some dark, thin, shaly 

 beds in the Carboniferous Limestone Series near Bwlch, about 

 1 mile N.N.E. of ISTannerch, Halkin Mountain, Flintshire, and 

 associated with it in the same beds were fragments of polyzoa and 

 some trilobites, the latter of which have been determined by 

 Mr. E. T. Newton as Phillipsia Eichwaldi, Fischer. The specimen 

 has been presented by Miss Eeid to the Museum of Practical 

 tGeology, Jermyn Street. 



EXPLANATION OF PLATES XXII. & XXIII. 



Plate XXII. 



Pemmatites constipatus, sp. nov. Figs. 1, 1 a-\ m. 



,Fig. 1. The sponge showing the upper surface. Natural size. 



I a, 1 b, 1 c. Spicules from the fibres showing their individual forms. 



Enlarged 60 diameters. 

 1 d, 1 e, If, \g, 1 h. Spicules from the fibres showing their mode of 



union. Enlarged 60 diameters. 

 1 i. A portion of a spicular fibre as shown in a horizontal section of the 



sponge. Enlarged 60 diameters. 

 1 Jc. A portion of a spicular fibre as shown in a vertical section of the 



sponge. Similarly enlarged. 

 1 1. A portion of a spicular fibre with canals, as shown in a horizontal 

 section. The spicules are too crowded to be individually distin- 

 guished. Similarly enlarged. 

 \m. Fusiform spicules (fragmentary) from the interior of the sponge. 

 Enlarged 60 diameters. 

 From the Yoredale Series at Thringle Scar, near Richmond, Yorkshire. 

 Collected by Mr. John Rhodes, and now in the Museum of Practical Geology, 

 ..Jermyn Street. 



Etcnicites Reidice, sp. nov. Figs. 2, 2 a, 2 e. 



Fig. 2. The jaw-apparatus : (a) The supports, (b) The pincers. (c) The 

 dental plate of the left side, (d) The corresponding plate of the 

 right side, imperfect. A portion of the pincer on the left side is also 

 missing. Enlarged 10 diameters. 

 :2 a. The same as shown in the counterpart, similarly enlarged. 

 2e. A paragnath, probably belonging to the same jaw. XlO. 

 :3. The cast of a dental plate, detached. X 10. 



4. A small paragnath, detached. X 10. 



5. A fragment of a pincer, detached. X 10. 



The specimens are from the shaly beds in the Carboniferous Limestone Series 

 near Bwlch, about 1 mile N.N.E. of Nannerch, Halkin Mountain, Flintshire; 

 they are preserved in the Museum of Practical Geology, Jermyn Street. Col- 

 lected by Miss M. A. Reid. 



Plate XXIII. 



Palcsacis humilis, sp. nov. Figs. 1-15. 



Fig. 1. A complete specimen as it occurs in the rock, showing the basal portion 

 and the surface-ridges. Enlarged 2 diameters. From the Carboni- 

 ferous Limestone, River Hodder, Stonyhurst, Lancashire. 



2. The upper surface of a fairly complete specimen with four corallites. 



X 2 diameters. 



3, 4. The upper and under surfaces of a specimen in which one of the 



corallites is much longer than the others. This is entirely free from 

 the rock-matrix. X 2 diameters. 



