Vol. 67.] FROM THE NEIGHBOURHOOD OF EXETER. 401 



Glyphioceras striolatum (J. Phillips). 



1836. Goniatites striolatns J. Phillips, ' Geol. Yorks.' pt. 2, p. 234 & pi. xix, 

 figs. 14-19. 



1897. Glyphioceras diadema (H. E. Beyrich) ; A. H. Foovd & G. C. Crick, 



Catal. Foss. Ceph. Brit. Mus. pt. 3, p. 202 (in part), with fig. 98. 



1898. Glyphioceras striolatum (J. Phillips); E. Haug, 'Etudes sur les 



Goniatites' Mem. Soc. Geol. France, Paleont. vol. vii, no. 18, p. 92 & 

 pi. i, figs. 22, 24-27. 



This appears to be the most commonly occurring species at 

 Pinhoe. To it are referred numerous examples, usually ranging 

 in diameter up to 12 or 13 mm., while some display the line sculpture 

 exceedingly well. A nodule from this locality contains a specimen, 

 about 19 mm. in diameter, possessing the fine sculpture of the 

 species enclosed within another whorl, which is crushed and appa- 

 rently quite smooth, having a diameter of a little more than 40 mm. 

 Another nodule from the same locality exhibits a similar example, 

 also showing the finely- sculptured inner whorl at a diameter of 

 about 20 mm. surrounded by a portion of the crushed outer whorl 

 of rather more than 40 mm. in diameter; the ornaments exhibit a 

 prominent crest on the outer portion of the lateral area and a deep 

 sinus on the periphery ; the umbilicus appears to have been rela- 

 tively small, infundibuliform, and with a rounded margin. Another 

 example in the British Museum from Pinhoe [C 9122 a], 8 mm. in 

 diameter, is referred to this species. 



A crushed example and counterpart, labelled as from 'near Barley 

 (opposite entrance to field in which landslip occurred),' seems to be 

 referable to this species. Its transverse striae are but slightly 

 waved, not so much as in Glyphioceras reticulatum. 



An imperfect impression from the ' bottom of Ashlake lioad ' 

 probably belongs to this species, and possibly also a specimen from 

 the ' bottom of Idestone Hill.' It is also doubtfully represented 

 at Mincing Lake. 



The impression of a portion of a whorl about 35 mm. high, in a 

 piece of black shale from Perridge Tunnel, displays a sculpture 

 similar to that of the large outer whorls already mentioned from 

 Pinhoe. Transverse ornaments are very conspicuous, but there 

 are no traces of any longitudinal lines ; near the peripheral margin 

 of the lateral area the shell possessed a distinct groove as in Ol. 

 bilingue, but the shell-ornaments do not agree with those of that 

 species, and resemble quite closely the sculpture of the large 

 examples from Chokier (Belgium), figured as Gflypliioeeras diadema 

 by Foord & Criok, 1 and subsequently referred by Prof. Haug (op. 

 supra cit. pp. 92 & 94) to Gl. striolatum (J. Phillips). 



Several small specimens in the Exeter Museum, labelled ' Exeter' 

 [No. 4541], appear to belong to this species ; also an example, 

 10 mm. in diameter, in the same Museum, labelled 'Dunsford lioad, 

 above Pocombe Bridge.' 



Phillips's striolatns has been regarded as a synonym of Beyrich's 



1 Op. cit. figs. 98 a & 98 b, p. 203. 



