KHAMPHORHYtfCHID^ 33 



being 0,194. It was founded upon bones of the manus and pes, 

 which were referred both by Wagner and Meyer to Pterodactylus ; 

 but the relative shortness of the metacarpals in the figure given by 

 Wagner in the <Abh. k.-bay. Ak. Wiss.' vol. vi. pt. iii. pi. xix., shows 

 that it belongs to the Rhamphorhynchine type. The proximal 

 portion of the tarsus is anchylosed to the tibia, and the hind limb 

 was probably stronger than in the other species. The following 

 specimen, which is only provisionally referred to this species, indi- 

 cates a smaller individual than the type ; the extremity of the 

 mandible is strongly recurved upwards, and the length of the skull 

 is about 0,200. 



Bab. Europe (Germany). 



37002. A slab of lithographic limestone containing the greater part 

 of a skeleton, provisionally referred to the present species ; 

 from the Eimeridgian of Eichstadt, Bavaria. The length 

 of the second phalangeal of the wing-digit is 0,165, that 

 of the third 0,140, and that of the fourth 0,136. The teeth 

 are markedly compressed laterally ; the tibia and tarsus 

 are not visible. Haberlein Collection. Purchased, 1862. 



42737. A split slab of lithographic limestone showing the conjoint 

 tibia and fibula and pes of a large Ornithosaurian, which 

 may belong either to the present or an allied form ; from 

 Eichstadt. In the anchylosis of the proximal portion of 

 the tarsus to the tibia this specimen agrees with the 

 imperfect pelvic limb of R. grandis figured by Meyer in the 

 ' Eauna der Yorwelt — Eept. Lith. Schiefer,' pi. vii. fig. 7. 

 The length of the tibia in the present specimen is 0,141, 

 against 0,198 in the latter, and thus agrees in relative 

 size with No. 37002. 



Van Breda Collection. Purchased, 1871. 



Genus RHAMPHOCEFHALUS, Seeley \ 



Distinguished from Rhamphorhynchus by the anterior mandibular 

 teeth being taller than the posterior, which are directed nearly 

 vertically, and by the great constriction of the cranium between 

 the orbits. The scapula and coracoid were united 2 . 



The apparent generic distinctness from Rliamjphorhynchus of the 

 forms included in this group was first pointed out by Huxley in 

 the memoir cited under the head of R. depressirostris. 



1 Quart. Journ. Geol. Soc. vol. xxxvi. p. 27 (1880). 



2 See Huxley, Quart. Journ. Geol. Soc. vol. xv. pi. xxiy. fig. 6. 



D 



