GRAPTOLITES OF NEW YORK, PART 2 415 



Climacograptus putillus (Hall) 



Plate 38, figures 14, 15 



Graptolithus putillus Hall. Geol. Sur. Can. Org. Rem. Dec. 2. 1865. 



p. 27, 44; pi. A, fig. 10, 11, 12, 12a 

 Diplograptus putillus Hall. State Cab. Nat. Hist. 20th An. Rep't. 



1868. p. 195, 211; pi. 2, fig. 10, ii, 12, 12a 

 Diplograptus putillus Nicholson. Geol. Soc. Quar. Jour. 1868. 24:527; 



pi. 19, fig. 17, 18 

 Diplograptus putillus Walcott. Alb. Inst. Trans, v. 10, 1883. (Advance 



sheets. 1879. p. 35) 

 Diplograptus putillus Tullberg. Sver. Geol. Unders. ser. C. no. 50. 



1882. p. 43 

 Diplograptus putillus Lapworth. Roy. Soc. Can. Proc. & Trans. 1886. 



4:170, 178 ff 



Diplograptus putillus Walcott. Geol. Soc. Am. Bui. 1890. 1:339 

 Diplograptus putillus Ami. Can. Rec. Sci. (1892-93) 1893. 5:244 

 Diplograptus putillus Gurley. Jour. Geol. 1896. 4:298 

 Graptolithus (Diplograptus) putillus Winchell & Schuchert. 



Geol. Minn. 1895. v. 3, pt 1, p. 82, fig. 3 

 Diplograptus putillus Nickles. Jour. Cin. Soc. Nat. Hist. 1902. 20:68 

 Diplograptus teretiusculus Hisinger sp. var. putillus Freeh. 



Roemer & Freeh, Lethaea Pal. 1896. 1:628 

 Diplograptus putillus Ruedemann. N. Y. State Mus. Bui. 42. 1901. 



p.498 ff 

 Diplograptus putillus Winchell & Ulrich. Geol. Minn. 1897 v. 3 



pt 2, p. CXI 



Description. Rhabdosome very small (9 mm, mostly less) and slender 

 (1-1.3 mm wide), elliptic in section, widening gradually, possessing a gently 

 wavy median furrow on each lateral face. Sicula small (1.3 mm) and very 

 slender, provided with a short apertural spine ; its slender virgella pro- 

 truding from the rhabdosome. Thecae tubular, little inclined to the axis of 

 the rhabdosome in the proximal half and subparallel to it in the distal free 

 half; closely arranged (12-14 nl the space of 10 mm or 32 in 1 inch); 

 apertures straight, at right angles to longer axes of thecae. Nemacaulus 

 thin. 



