400 HE. G. C. CRICK ON CARBONIFEROUS CEPHALOPODA [Aug. IQH> 



numbered 4541, seem to belong to this species ; they are associated 

 with several examples of what appears to be Glyphioceras strio- 

 latum. 



The species has been recorded from the Yale of Todmorden, High 

 Green "Wood, and Hebden Bridge (Yorkshire), 1 as well as from the 

 marine bands in the Coal Measures of Lancashire. 2 



Localities. — Pinhoe brickfield 3 ; and ' Exeter [Exeter Mus.].' 



Olyphioceras beyrichiakum (de Koninck). 



1843. Goniatites beyrichianus L. G. de Koninck in J. J. d'Omalius d'Halloy, 

 ' Precis elementaire de Geologie ' p. 515. 



1897. Glyphioceras diadema (FT. E. Beyrich) ; A. H. Foord & G. 0. Crick, 



Catal. Foss. Ceph. Brit. Mus. pt. 3 (1897) p. 202 (in part). 



1898. Glyphioceras beyrichianum (L. G. de Koninck) ; E.lHaug, \ Etudes sur 



les Goniatites' Mem. Soc. Geol. France, Pal^ont. vol. vii, no. 18, p. 95 

 & pi. i, figs. 1-21, 23. 



The species usually recorded from England under the name of 

 Glyphioceras diadema includes, according to Prof. Haug, Gl. bey- 

 richianum (L. G. de Koninck) with several varieties, and Gl. 

 striolatum (J. Phillips). 4 



Yar. biplex Haug. — Pinhoe brickfield has yielded several examples 

 of this variety, with diameters ranging from about b'5 mm. to 

 21 mm., the umbilicus of the largest being about 10 mm. wide. This 

 variety is also represented doubtfully from the ' bottom of Idestone 

 Hill.' 



Yar. crenatum Haug. — Some small, widely-umbilicated, internal 

 casts from Pinhoe, having a diameter of about 5 mm., closely 

 resemble this variety of Prof. Haug, but their umbilical margins 

 are smooth. They may be widely-umbilicated young examples of 

 Glyphioceras striolatum. 



Yar. coronatum Haug. — This variety may be represented by a 

 poor example from Pocombe. 



Glyphioceras diadema has been recorded from the Pendleside 

 Series, and indicated as passing up into the Millstone Grits and 

 Lower Coal-Measures. 5 It has also been recorded from the Lower 

 Coal-Measures of Lancashire, 6 and from South Wales. 7 



Localities. — Yar. biplex : Pinhoe brickfield, and possibly also 

 from the ' bottom of Idestone Hill ' ; var. crenatum : probably from 

 Pinhoe brickfield ; var. coronatum : possibly from. Pocombe. 



1 A. H. Foord & G. C. Crick, Catal. Foss. Ceph. Brit. Mus. pt. 3 (1897), 

 pp. 222-23. Dr. A. S. Woodward has told the present writer that the 

 specimens C 5293, there recorded as from ' Halifax,' were really from Hebden 

 Bridge. 



2 W. Hind, Q. J. G. S. vol. lxi (1905) p. 544. 



3l Unless otherwise stated, the specimens are at present in the collection of 

 MrTF. G. Collins. 



4 J. Phillips, 'Geol. Yorks.' pt. 2 (1836) p. 234 & pi. xix, figs. 14-19. 



5 W. Hind & J. A. Howe, Q. J. G. S. vol. lvii (1901) App. B, table facing 

 p. 402. 



H. Bolton, Trans. Manchester Geol. Soc. vol. xxviii (1904-1905) p. 413. 

 7 W. Hind, Geol. Mag. dec. 5, vol. i (1904) p. 585. 



