﻿Vol. 64.] IN THE CARnONIFKROUS ROCKS AT LOUGHSKINNY. 471 



EXPLANATION OF PLATES XLIX & L. 



Plate XLIX. 



Ayonian Corals from the Eush -Skerries Section (County Dublin). 



Fig. I. Lithostrotion-\\\Q Clisiopbyllid (p. 463). Horizontal section ; X I'Sf). 

 Carlyan Eooks (top of the viegastoma-heds). 



2. Densiphylloid Zcq)hre7iiis, sp. nov. (p. 459). Horizontal section ; X 1'4. 



L21 c7, Dibu]iophii/ll't/m-L\n\es\one. 



3. LUhostrotiov-M\iQ Clisiophyllid (of. Clisiophyllum mtrkeenense,Yix\\^\Vin) 



(p. 462). Hoi'izontal section ; X I'L Showing the structure of the 

 axial spike. Near L 24 h, Dibunophyllum-JAmestonQ. 



Figs. 4 r/ & 4 h. DUmno'phyllum aff. Muirheadi, Thorns. & Nich, (p. 463). 

 Horizontal sections ; X 1"2. Dihmiophyllum-Llmestone. 



Fig. 4 a represents the typical species. L21b; and fig. 4 h repre- 

 sents a foi-m convergent on Clisiophyllum ciirkeenense, Vaughan. 

 L 23 «. 



Fig. 5. Carcinojjhyllum ciirkceneiise, sp. nov. (p. 464). Horizontal section ; 

 X 1*25. L 23 a, DihunophyUmn-lAiwesionQ. 



Figs. 6 « & 6/;. Zaphrentis OmaUusi, var. amhigua, Carruthers (p. 457). Hori- 

 zontal sections; X 1*25. L27, Lane Limestone. 



Fig. 6 a represents the typical variety ; and fig. 6 h represents a 

 form comparable with var. densa, Carruthers. 



Fig. 7. Diphyphyllum suhibicinum (M'Coy) (p. 461). Horizontal section ; 

 X i*2. L39a, Holmpatrick Limestone, 



8. Zaphrentis Omaliusi, var. ambigua, mut. a nov. (p. 458). Horizontal 



section; X 1"25. 'R,2'^b, Cyclthaxonia-'BQdiS. 



9. Cyathaxonia rmhiana, Vaughan (p. 460). Horizontal section ; x 2. 



E 23 b, Cyathaxonia-'Bedi?,. 



10. Lithostrotion cf. a fine (Flem.), Ed. & H. (p. 462). Horizontal section ; 



X 1-2. L 4 e, D-P Phase. 



11. Michelinia tenuisepta, rar. favositoides noY. {-p. '^56). Vertical section; 



X 1*2. L20/, Posidonomya-Beds. 



12. Lonsdaloid Carcinophyllitm {ip. 464i). Horizontal section ; X 2. LlSc, 



Posidunomya-'Beds^. 



13. Zapkrejitis Enniskilleni, Ed. & H. (p. 457). Horizontal section ; 



X 1"2. LSy, Posidojiomya-'Beds. 



14. Koni7ickophyllwn sp. (cf. K. interruptum, Thorns. & Nich.) (p. 461). 



Horizontal section ; X 1'2. TaX^. g , Poaidonomyo-B&d's.. 



Plate L. 

 Braciiiopods from Loughshinny (County Dublin). 



Fig. 1. Prodiictus (Prohoscidella) probomideu^, de Verneuil (p. 466). Pedicle- 

 valve ; X 1'5. L 5 c?, Lower Posi(^o?20y«yrt-Beds. 

 2. Productus striatus (Fischer) (p. 467). Pedicle-valve ; natural size. 

 L 5 J, Lower Posidonomya-Beds. 



Figs. oa&Sb. Spirifer Usulcatus, var. (cf. Sp. mtegricosta, Phillips) (p. 467). 

 L 5 d, Lower Posidonomya-BQds. 



Fig. 3 a represents the brachial valve ; X 1"25. Fig. 3 h represents 

 the pedicle-valve ; natural size. 



Fig. 4. Spirifer cf. convoluUis, Phillips (p. 468). Brachial valve ; X 2*33. 

 L 6c, Middle Poddonomya-Beds. (Much enlarged, to show ornament.) 



5. 3fartinia omliglahra, sp-^nov. (p. 468). Fragment of brachial valve ; 



X 2. L 5 m, Lower Posidonomya-BQd^. (Much enlarged, in order to 

 show ornament.) 



6. Athyrk cf. planosulcata (Phillips) (p. 469). Brachial valve ; natural 



size. L5 y^-, Lower Posidonomya-Beds. (Compare Dav. pi. I'i, fig. 12.) 



7. Schizo2Jhora resupinata (Martin), spinous var. L7c, Middle Posi- 



donomya-Beds. Fragment enlarged to 1-5, in order to show ornament. 



Q. J. G. S. No. 255. ;:; i 



