OTOZAMITES. 215 



1838. Cyclopteris amminata, Sternberg, Flor. Vorwelt, fasc. vii. p. 133. 

 Zamites undulatus, ibid. p. 197. 



1848. Odontoptei-is acuminata, Bronn, Ind. Fal. p. 837. 

 Zamites Toimgii, ibid. p. 1379. 



Z. MantelU, ibid. p. 1378. 



1849. Otonamites Ymmgii, Brongniart, Tableau, p. 106. 

 0. acuminatus, ibid.' 



? Zamites undulatiis, ibid. 



1850. Otozamites acuminata, linger. Gen. spec, plant, foss. p. 88. 

 Zatnites lanceolatus, ibid. p. 282. 



1854. Otozamites acuminata, Morris, Brit. Foss. p. 14. 

 1864. Otopteris acuminata, Leekenby, Quart. Journ. Geol. Soc. vol. xx. p. 77. 

 0. lanceolata, ibid. 



1868. ? Zamites Bechd, Eicbwald, Letb. Eoss. pi. ii. fig. 9. 



1869. Otopteris accvminata, Schimper, Trait, pal. veg. vol. i. p. 484. 



1870. Otozamites aamiinatm, ibid. vol. ii. p. 176. 

 0. intermedius, ibid. 



1875. Otopteris acuminatus, PMUips, Geol. Torks. p. 223, lign. 50. 



0. latifolius, ibid. p. 224, pi. x. fig. 1. 



0. lanceolatus, ibid. p. 223, pi. x. fig. 3. 



Zamites distractus, Saporta, Pal. Fran9. vol. ii. p. 115 ; pi. xoiii. 

 figs. 4 and 5. 



Z. acerosiis, ibid. pi. Ixxxvi. 



Otozamites Tmmgii, ibid. p. 128, pl. xcvi. fig. 1. 

 1881. Otozamites Toungii, Zigno, Flor. foss. Oolit. vol. ii. p. 79. 



0. acuminata, ibid. p. 80. 



0. intermedius, ibid. p. 82. 

 ? Sphenozamites undulatus, ibid. p. 108. 

 1892. Otozamites acuminatus, Fox-Strangways, Tab. Foss. p. 139. 



0. latifolius, ibid. 



0. lanceolatus, ibid. 



T'^pe - specimen. Type of Lindley & Hutton, Scarborough 

 Museum. Type of Otommites latifolius, York Museum. 



Frond pinnate, of similar form to that of Williamsonia gigas, 

 from which it differs in the more gradually tapered and acuminate 

 pinnae, and in the wider angle at which the segments are attached 

 to the raohis. The apical pinnee are narrow, linear in form, while 

 the basal pinnse are shorter and broader, and more or less oyate, 

 with an acuminate apex, attached to the rachie at a slightly obtuse 

 angle. 



It is convenient to designate certain forms of this species in 

 which the pinnse are short and tapering distally to an acuminate 

 apex (e.g. PI. II. Fig. 1) 0. acuminatus, var. Irevifolius, and 

 others with broader pinnae 0. acuminatus, var. latifolius. The 

 former name, var. hrevifolius, was used by Lindley & Hutton for 



