144 PEOCEEDINGS OF THE GEOLOaiCAJi SOCLETT. 



^' funicle," — the essential part of the definition being, that the cellu- 

 liferous branches are derived from a main celluliferous rhachis, and 

 not from a non- celluliferous funicle. 



27. Pletjrogeapstjs yagan^s, Nich. PL VI. figs. 4 & 5. 



Amongst Prof. Harkness's specimens is one which is certainly- 

 new, and which appears to belong to this genus. This determina- 

 tion rests entirely upon the mode of branching, and must therefore 

 be regarded as being simply provisional, since the discovery of a 

 complete specimen might very possibly demonstrate the existence 

 of a true '^funicle." 



The frond, as far as seen, consists of a main stipe giving off 

 celluliferous branches from one side, at intervals of about |- of an 

 inch, and at angles of about 60°. The stipes are narrow at their 

 origin, but widen out until a breadth of J of an inch may be obtained. 

 The axis is strong, and the common canal broad and well marked. 

 The cellules are from 20 to 22 in the space of an inch, of the type 

 of 0. latus, M'Coy ; the denticles angular and prominent, their apices 

 being produced and submucronate. 



Loc. Scale Hill, near Crummock. 



28. Teteageapstjs CKircirEE, Hall, sp. 



Graptolithm crudfer, Hall. (Grapt. Quebec Group, p. 92, pi. 5. 

 fig. 10.) 



An obscure and weathered specimen, obtained by Mr. Joseph 

 Graham of Keswick, is apparently referable to this species ; but its 

 state of preservation is such as to preclude any certain determina- 

 tion. The frond consists of four simple stipes united centrally by a 

 small disk. The stipes are broad, attaining a width of about | of 

 an inch, the denticles being angular and submucronate. T. crudfer y 

 HaU, differs from T. Headi, HaU, in being smaller, but in possessing 

 broader stipes as compared with the size of the frond. 



Loc. Barff, near Keswick. 



List of the Graptolites of the SJciddaw series. 



Bendrograpsus HaUianus, Prout (?). 

 Bichograpsus Logani, Hall. 



multiplex, Nich. 



octobrachiatus, Hall {=D. Sedgwickii, Salt.). 



reticulatus, Nich. 



Bidymograpsus bifidus, Hall. 



caduceus, Salter. 



geminus, His. 



nitidus. Hall. 



patulus, HaU {=B. hirundo, Salt.). 



serratulus, Hall. 



sextans, Hall. 



V-fractus, Salt. 



Biplograpsus antennarius, Hall. 



mucronatus, Hall. 



pristiniformis. Hall. 



teretiuscidus, His. 



GraptoUtes latus, M'Coy, 



