Notes on some Lancefield Graptolitcs. 29 



aspect to the upper portion, of the lower margin. Hydrothecae 

 number ten to the centimetre. Breadth of the entire stock, from 

 24 cm. to about 30 cm. 



Genus Temnograptus, Nicholson. 



In 1891 I described a gigantic graptolite under the name 

 Teinnograptus magnifiais^ and drew attention to the close 

 relation which undoubtedly existed between it and T. multiplex, 

 Nicholson, the type of the genus, and three other species 

 originally described by Professor J. Hall as Graptolithus flexilis, 

 G. rigidus, and G. abnormis. The three last-named species are 

 now regarded as belonging to the genus Clonograptiis, and 

 according to Dr. O. Herrmann in a paper on the DichograptidcB*' 

 T. multiplex, Nicholson, must also be referred to this genus, as he 

 asserts that TemnograptJis is not sufficiently distinct from 

 Clonograptiis. However, in a communication I received from 

 Professor Nicholson he informs me that he is not at all disposed 

 to regard these two genera as identical, also that he regards my 

 species as doubtless congeneric with his T. multiplex. I will 

 therefore for the j)resent allow the generic location of my species 

 to stand unaltered. 



Genus Clonogeaptus, Hall. 

 " Hydrosome bilaterally sub-symmetrical, consisting of more 

 than four simple branches produced by dichotomous division. 

 The spaces between the furcation-points are larger than in 

 Dichograptics. Central disc never present." 



Clonograptus fi^exilis, Hall. 



Graptolithus flexilis. Hall, Geological Survey of Canada 

 Report for 1857, }). 119 ; also Graptolites of the Quebec Group, 

 p. 103, pi. X., figs. 3-9. 



Description. — Polyp-stock multibrachiate, composed of numer- 

 ous slender branching stipes symmetrically disposed on the two 

 sides of their origin. Sicula, minute ; funicle, short, from 1-5 mm. 

 to 2-5 mm. in length, dividing at the extremities at an angle 

 of about 105°; each of these four branches again divides within 

 the space of from 2-5 mm. to 5 mm., making eight principal 



* Geo. Mag., N.S., Dec. III., vol. iii , No. 1, p. 25. 



