44 Mr. Weaver on the Geological Relations of the South of Ireland. 



Conchifera : (continued) 

 Spirifera rhomboidea, (Phil., PI. IX. fig. 8, 9.) t. 



S. insculpta, (Phil., PI. IX. fig. 2, 3.) J, besides three species of Spirifera not yet named. 

 Terebratula crumena, (Sow. T. 83. fig. 2, 3.) t+. 

 T. cordiformis, (Sow. 495. fig. 2, 4.) c. 

 T. pugnus, (Sow. 497.) f +• 

 T. pleurodon, (Phil., PI. XII. fig. 25, 26, 27.) :. 

 T. radialis, (Phil., Plate XII. fig. 40, 41.) J: ; besides several other Terebratulae, some of 



which appear referable to — 

 T. elongata, (Schlotheim ,T. 20. fig. 2.) ■f.'^ Considered as the same species by Von Buch. 

 T. lata, (Schlot. T. 20. fig. 3.) f. J (See p. 100, iiber die Terebrateln.) 



T. rostrata? (Schlot. T. 16. fig.4.)t, Spirifera. 



T. lasvigata, (Schlot. T. 18. fig. l.)tt, Spirifera; seems more nearly allied to Spirifera 

 glabra than to S. ohlata of Sowerby. 

 But these are severally given by that author as derived from transition tracts on the Continent'. 

 Among the Bivalves are also to be noticed, 

 Isocardia vetusta (Phillips), the upper valve of a Posidonia (Phillips). 

 Pleurorhynchus elongatus, (Phil., PI. V. fig. 28. Cardium, Sow. T. 82. fig. 2.) X- 



P. hibernicus (Phil. Cardium hibernicum. Sow. T. 82. fig. 1. 3.) c.J. 

 Pecten plicatus (Sow. T. 574. fig. 3. and Phil., PI. VI. fig. 21.). 



P. dissimilis (Phil., PI. VI. fig. 19.) J, and three other species of Pecten not yet named^ 

 besides an Avicula, and some other bivalves as yet undetermined. 

 Of Polyparia, remains chiefly referable to the genera Retepora, Cyathophyllum, Favosites, 

 Turbinolia, and Astrea. But the Amplexus coralloides is not of uncommon occurrence. The Re- 

 tepora memhranacea (Phil., PI. I. fig. 1 to 6) is also common, spread in wide sheets through the rock. 

 Of Crinoidea, the remains which have principally occurred to me belong to portions of vertebral 

 columns, which appear referable to — 



§ Actinocrinites moniliformis, A. triaconta-dactylus, Cyathocrinites tuberculatus, and Platycri- 



nites Iffivis. (See Miller's Crinoidea.) 

 Some of the preceding organic exuviae I have noticed also in the quarries adjacent to Castle 

 Island, associated with others not remarked on the line of the Maine, e. g. Orthoceras striatum. 

 Nautilus ovatus ; Euomphalus catillus ; Melania constricta ; Producta Martini, P. punctata ; Spi- 

 rifera imhricata (Tereb., Sow, T. 334. fig. 3, 4.) t, S. lineata (Tereb., Sow. T. 334. fig. 1,2.) J, 

 S. striata, S, obtusa, S. attenuata ; Terebratula hastata (Sow. T. 446. fig. 2, 3.) c.+, T. pugnus, 

 T. pleurodon ; Pleurorhynchus elongatus, Pleurotomaria carinata'i (Phil., PI. XV. fig. 1. Helix, 

 Sow. T. 10.) J, and an Orbicula? Amplexus coralloides, Favosites, and Retepora; and also a frag- 

 ment of the abdomen of a Trilobite. Several of these remains I have observed likewise in the carbo- 

 niferous limestone adjacent to Newcastle, on the north-eastern side of the South Munster coal tract. 

 In further illustration of this subject, I here add a list of the species remarked by Mr. S. Wright 

 in the carboniferous limestone, with which he has favoured me, mostly determined by Mr. Sowerby. 



Locality. 

 Nautilus biangulatus, (Sow. T. 458. fig. 2.) J. . . . Buttevant, and Glen of Ballybeg, in 



the county of Cork. 



' Nachtrage zur Petrefactenkunde. 



