﻿Yol. 64.] IN^ THE CARBONIFEROTJS EOCKS AT LOUGHS HINNT, 439 



(ii) Brachiopods : 



(x) Productics concinno-loiigispintis. 



(z) Prodiictus corrugato-hemisphericus. 



(z) Giganteid Productus. 



(w, x) Productus cf. rugatus, Phill. 



(x) Productus aculeatus (M.a,rt,), 



(w, X, y, z) Papilionaceous Ckonetes. 



(x, y) Schizophoria resupinata (^axt.). Abundant. 



(x) Mariinia glabra (Mart.) & (Dav.). 



Suggested Correlation of the Lane and Holmpatrick 

 Limestones with some part of D in the South- 

 western Province. 



It is extremely unfortunate that this series cannot be horizoned 

 stratigraphically, seeing that the fauna is in many respects a 

 peculiar one. 



If the above identification of the brachiopods from imperfect and 

 scanty material is correct, the following facts suggest that the 

 level of these beds cannot be lower than D of the South-Western 

 Province : — 



Plahicostate Spirifers are common only at the top of the Limestone- 

 Massif in the Western Midland Area, North Wales, etc. 



Productus humerosus is common in a D fauna, both at Caldon Low 

 (Western Midlands) and near Breedon (Leicester). 



Productus lo7igispinus and Martinia glabra are characteristic D2 species. 



Although the coral-species are numerous in individuals, the 

 number of species is small and the genera are those least adapted 

 to the attainment of precision in horizon. 



Diphyphyllum suhihicinum has no representatives in the South- 

 Western Province below D^, at which level the typical Campo- 

 phyllum Murchisoni is also met with for the first time. In the 

 Ingleborough area, however, it occurs in the basal conglomerate 

 (S^) and it is not uncommon in C-S of Arnside. 



Michelinia cf. tenuisepta differs from the typical form of the species in its 

 wider tubes, and is known from D of several localities. The new genus of 

 Olisiophyllid is represented in Dr. Matley's collection by a single unsatisfactory 

 specimen, which agrees with one that I have obtained at the top of the Midland 

 Massif near Wetton, and with another from R18c (Cgathaxonia-BedB) of the 

 Rush sequence. The rarity of specimens and their close similarity to early 

 forms from y detract from their value as evidence of horizon. 



The new species of Densiphylloid Zaphrentis recorded from the Bihuno- 

 phi/llum-IAmesto'ne ^ appears to be identical with a specimen from the Lane 

 Limestone. 



The Zaphrentes of the Lane Limestone are identical with those 

 of the Rush Slates, and agree better with the (?) D forms of the 

 Colne area than with the Tournaisian Zaphrentes of the South- 

 Western Province. Z. Omaliusi, var. amhigua, the striking variant 

 which is common to the Rush Slates, the Lane Limestone, and 



' And occurring in the Lower Limestone of Scotland (fide R. G. Oarruthers). 



