Carruthers — On British Graptolites. 127 



previous page, given the reasons for changing this name. Although so well marked 

 a^species, it has perhaps been more frequently figured and described as new than 

 any other graptolite. To it I refer the following : G. scalaris, Gein. (Leon, and 

 Br. Jahrb., 1842), G. incisus, Salter (Quart. Journ.), G. tcenia^ Sow. and Salt. 

 (Geol.Journ. vol. v.), G. Ba7'ra7idei ^c\idiXtn. (Grapt. p. 15), G. virgulatus, Scharen. 

 (Grapt. p. 14), G. lattts, Roem. (L. and Br. Jahrb., 1855), G. polyodo7tta Roem. 

 {idid), G. obliqiit-iriincattis^ Roem. {ibid), G. Jungsti, Roem. {ibid), G. serratus, 

 Gein. (L. and Br. Jahrb, 1842), G. nuntius, Richt. (Zeitschr. Deutsch. Geol. Ges., 

 1853), G. laxus Nic. (Quart. Journ. vi. ). G. rectus, Emm. (American Geol. i.) 

 is the same species, but it is erroneously drawn with the cells directed towards the 

 proximal end. G. Conybeari, Portl. (Report, p. 320), — I cannot distinguish the 

 authentic specimens in the Geological Museum, Jermyn Street, from G. Hisingeri. 

 Loc. Moffat, etc. 



6. G. Flemingii, Salter (Quart. Journ. viii. p. 390, pi. ai, figs. 5-7). Loc. 

 Wigton. 



7. G. convolutus. His. (Leth. Suec. p. 114, pi. 35, fig. 7). The following 

 synonyms belong to this species G. spiralis, Gein. (L. and Br. Jahrb. 1842). G. 

 Sedgwickii, M'Coy, not Portl. (Pal. Foss, p. 6, pi. iB, fig. 2). G. Sagittarius, 

 Giebel (Die Silur. Fauna, pi. 6, fig. 11). G. pectinatus, Richt. (Zeitsch. Deut. 

 Geol. Ges. 1853). G.elegans, Emmons (Am. Geol. i. p. 106). Rastrites triangu- 

 latus, Harkn. (Quart. Journ. vol. vii.). I have figured on PI. V. Fig. i the most 

 perfect specimen of this species I have yet seen. The importance of the specimen 

 was pointed out to me by Prof W. Thompson. The older portion of the poly- 

 pary has the structure of Rastrites. The cells are linear and isolated. Each cell 

 is furnished with two spinous processes from the sides of the mouth. Indications 

 of these are to be seen in the specimen figured, but I have numerous other speci- 

 mens in which they are more obvious, appearing as in Figs, lb, and \c. The first 

 cells are long and slender, they gradually become shorter and thicker, and then 

 they assume the triangular form characteristic of the full-grown polypary, with the 

 bases extended so far along the common canal as to meet. Loc. Moffat, etc. 



8. G. Sedgwickii, Portl. (Report, p. 318, pi. 19, figs. 1-3, 6). M'Coy having 

 mistaken this species, has caused it to be confounded with G. convolutus. Hark- 

 ness gives a very good representation of the species from Dumfriesshire specimens 

 (Quart. Journ. vol. vii. p. 58). In the original description Portlock clearly dis- 

 tinguishes it from G. convolutus. He says : " The serratures are strong projecting 

 hooks having a wide base." 



9. G. priodon. Bronn. (Leth. Geogn. p. 56, pi. I, fig. 13). G. ludensis, 

 Murch. (Sil. Syst. p. 694). Loc. Ludlow, etc. 



10. G. Halli, Barr. (Grapt. p. 48, pi. 2, fig. 12, 13, excl. fig. 14, 15). Loc. 

 Moffat. 



11. G. Becki, Barr. (Grapt. p. 50, pi. 3, figs. 14-18). G. lobiferus, M'Coy (Pal. 

 Foss. p. 4, pi. IB. fig. 3). G. Nicoli, Harkn, (Quart. Journ. vol. vii., p. 61 ). G. 

 millepeda, M'Coy (Pal. Foss. p. 5, pi. IB, fig. 6). Diplograpsus nodosus, Harkn. 

 (Quart. Journ. vol. vii., p. 63). Loc. Moffat. 



12. G. Clingani, sp. nov. (PL V., Figs. 19^., 191^). Polypary, small and 

 arcuate, with a broad common canal, and slender somewhat recurved hydrothecae. 

 This beautiful little graptolite I long supposed to be only the proximal portion of 

 some other species, but the large number I have met with, all equally perfect, 

 none larger than fig. 19^, and many showing the prolongation of the axis beyond 

 the distal end, together with the great breadth of the common canal (forming two- 

 thirds of the breadth of the whole polypary), unlike the early portion or proximal 

 fragment of any graptolite with which I am acquainted, have induced me to con- 

 sider it a good species. I have associated with it the name of my earliest friend, 

 the late J. Morison Clingan, M.A., my school-mate and fellow-student, my 

 companion in rambles over the green hills and among the picturesque valleys of 

 our native district, in exploring its geology or enjoying its beauty, and my friend 

 and counsellor until death early cut him off, but not until he had shown promise 

 of great excellence in the literary pursuits to which he had devoted himself, and 

 had endeared himself by his virtues to a large circle of friends. 



13. G. Griestonensis, Nic. (Quart. Journ. vol. vi. p. 53). Loc. Peebleshire. 



Gen. III. Cybtogkapsus, CaiT. (Murch. Sil., Ed. IV., p. 540). 



