LTTDLOW FORMATIONS OF THE WEST OF ENGIAKD. 371 



Ettn-icites vaeians, Grinnell, sp. 



Nereidavus varians, Grinnell, American Journal of Science, Sept. 

 1877, p. 229. 



Eunicites varians, Hinde, Quart. Journ. Geol. Soc. vol. xxxv. 

 p. 375, pi. xviii. figs. 2, 3, 5. 



The examples of this species correspond with the American forms 

 in almost every respect, save that they are of much smaller size. 

 The jaw is nearly straight ; the anterior portion is slightly convex 

 and incurved, and the posterior end blunted. On the upper margin 

 there are from ten to eighteen teeth, of which the first three or four 

 are nearly upright and rounded, and the others more or less acute 

 and directed backwards. In some of the specimens there are indi- 

 cations of a small rod or support attached to the inner side of the 

 anterior portion of the jaw, of a similar character to the flangelike 

 base occurring in the genus Liimhriconereites. The specimens vary 

 from f line to 1 line in length. 



Loc. and form. Wren's Nest, Dudley: "Wenlock group. 



Eunicites clixtonensis, Hinde. 



Eunicites clintonensis, Hinde, Quart. Journ. Geol. Soc. vol. xxxv. 

 p. 381, pi. xix. fig. 21. 



Less difference exists between the forms of this species and E. va- 

 rians than in the Canadian examples of the two species. In 

 E. clintonensis, however, the anterior portion is more elevated and 

 the denticles are more uniform than in E. varians. There is a great 

 resemblance also between this species and Lumhriconei-eites ha- 

 salis, H. ; but this latter has a wide basal flange supporting the 

 ridge which carries the denticles. This flange is not always ex- 

 posed to view ; and it is probable that some at least of the examples 

 referred to E. clintonensis may really possess the flange which is 

 distinctive of the genus Lumlriconereites. 



The average length of the specimens is 1 line. 



Loc. and form. Much "Wenlock ; Wren's Nest, Dudley : Wenlock 

 group. 



Eunicites coronattts, Hinde. 



Eunicites coronatus, Hinde, Quart. Journ. Geol. Soc. vol. xxxv. 

 p. 381, pi. XX. fig. 9. 



The examples of this form are somewhat smaller, less convex, 

 and with two or three more denticles than the forms from the Clin- 

 ton rocks of Canada. They closely resemble the " paragnaths " in 

 the recent genus Eunice. Leng-th f line, depth f line nearly. 



Loc. and form. Wren's Nest, Dudley : Wenlock group. 



Eunicites chiromorphus, Hinde, var. minor. (PI. XIY. fig. 10.) 



Jaw triangular, strongly convex, the sides gently curved, on the 

 upper margin six upright blunted teeth. Length of upper edge 

 \ Hue, depth |- line nearly. This variety is much smaller, less ex- 

 tended, and with fewer denticles than E. chiromorplms. 

 Loc. and form. Wren's Nest, Dudley : Wenlock group. 



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