488 



RICHARD SWAXN LULL ON 



the present author that a di\dsion can be made upon the ground of size, though whether 



this would agree with what Hitchcock had in mind one cannot say. 

 There are, however, certain specimens whose size agrees with what 

 one would expect the pes of Anchisaurus {Megadactylus) polyzdus 

 E. Hitchcock, Jr., to be, judging from the relative sizes of the 

 known part of the skeleton and that of A. colurus, and it is pro- 

 posed to place these specimens under a new species bearing the 

 name of Anchisauripus hitchcocki in honor of the great ichnologist. 



Anchisauripus hitchcocki s)>. nov. 



Synonymy as in A. dananus. 



Specific characters. Divarication of digits I and H, 138°; of 



n and HI, 19°; of III and IV, 14°; 

 of II and IV, 33°. Length of digit 

 II, .060 m.; of III, .088 m.; of IV, 



1/ 



Fig. .5. Anchisauripus hitch- 

 cocki Lull. Impression of the 

 right pes. X 5. From the type .075 m.; of the foot, CXclusive of 



specimen, no. ^A, of the Hitch- hallux, .119 m.; including the hal- 

 lux, .140 m. Distance between 

 lateral tips, .067 m. (see fig. 5) . 



The type specimen is an individual track, no. ^, of the 

 Hitchcock cabinet, associated with A. minusculus and is 

 figured by E. Hitchcock ('65, pi. 16, fig. 1). Ou shale, 

 from the Lily pond, at Turner's Falls, Massachusetts. 



This species is correlated with Anchisaurus {3Iega- 

 dactylus) polyzelus E. Hitchcock, Jr., the first dinosaur 

 found in the valley, the type of which is preserved in the 

 Hitchcock ichnoloo-ical cabinet at Amherst. 



Anchisauripus tuberosus (E. Hitchcock). 



Eubrontes tuherosns E. Hitchcock, '45b, p. 23. '• / ..• 

 Brontozourn Joxonyx E. Hitchcock, '48, p. 172, pi. 2, ^. 



' ' >- i 7 Fig. 6. Anchisauripus tuberosus E. 



^S- 1~-J- Hitchcock. Track of the right pes. XL 



Brontozourn validuin E. Hitchcock, '58, p. 07, pi. 12, ^'k™ "le type, no. fj, of the Hitchcock 



tig. 2 ; pi. 38-51 ; pi. 57, fig. 3. • ~ 



cabinet. The hallux impression is re- 

 stored from another specimen. 



Specific characters. Divarication of digits I and 11, ? 135° ; of II and III, 14° ; of III 

 and IV, 13°. Length of digit I, about? .055 m. ; of II, .086 m. ; of III, .128 m.; of IV, 



