274 
SUPPLEMENT TO THE BRITISH 
It will not be necessary to reproduce the names of all the British species of Spirifera, 
but we will add what may be new or requiring further explanation. 
9, 10. Spirifera striata, and var. Mosquensis. — I have, in Pis. XX^I, XXXII, 
and XXXIV of this Supplement, given figures of the spiral appendages developed by the 
Rev. Norman Glass. Prof, de Koninck justly observes that Sp. striata is found in great 
abundance in Ireland, and chiefly in the limestone of Millecent and Ratheline, but that 
at the southerly extremity, and in the northern part of the same island, this Spirifer is 
replaced by the Sj). Mosquensis, that in England it is very much rarer, whilst its presence 
has not hitherto been ascertained in Scotland ; and that in Germany 8jp. striata is known 
to him only in the limestone of Ratingen ; that it is hitherto unknown in Prance and in 
Russia, while the Sjj- Mosquensis is generally predominant. M. de Verneuil mentions it 
from a single Spanish locality (Pas-en Cavales) ; in Belgium it is known only from the 
neighbourhood of Dinant, and principally at Pauquys. 
11. Spirifera pinguis, var. rotundata, Soid. — I have given in Pis. XXXI and 
XXXII of this Supplement a series of figures showing the form of the spiral coils from 
specimens admirably developed by the Rev. Norman Glass, This species has not posi- 
tively been ascertained to occur in Scotland, and the specimen I figure as from North 
Britain, and in the possession of the Geol. Survey, may not have come from Scotland. 
12. Spirifera glabra, Martin, sp. I have, in PI. XXXII of this Supplement, given 
figures taken from three specimens showing the form and position of the spiral coils. 
The spiral coils were developed by the Rev. N. Glass. Whether this and some other 
allied forms should be maintained in the genus Sjnrifera proper may remain a question 
for further and future consideration, for in his " Liste des Brachiopodes munis d'une 
spire" ('Memoiresde la Societe Royale de Belgique,' 1859) Prof. L. de Koninck 
mentions that in a species of Spirifer {Sp. glaberrimus), nearly allied to Sp. glabra, 
the shell is traversed by canals (as in Spiriferina), and in his description of 
Sp. glabra (' Recherches sur les fossiles paleozoiques de la Nouvelle-Galles du 
Sud,' p. 228, 1877), the same distinguished palaeontologist observes, "Le tet est 
assez mince et perfore, comme il est facile de s'en assurer par I'inspection de certains 
echantillons de Belgique et d^Australie, que j'ai sous les yeux. Dans ce cas, on observe a 
sa surface des ponctuations bien marquees et disposees en quinconce sur presque toute 
son etendue." 
>S^. glabra in Australia and Tasmania attains to twice the dimensions of any speci- 
d'un age different de celui de Tournay, ainsi que je I'ai suppos6 pendent longtemps. Neanmoins je suis 
porte a croive que le premier n'a et n'a jamais eu aucune communication directe avec le second, et qu'il 
constitue en quelque sorte une ile parfaitement distiucte du reste du continent carbonifere que ravoisine. 
tnais depose a la meme epoque que lui." 
