32 PROCEEDINGS OF THE NATIONAL MITSEUM vou 78 



Genus DRACAENA Daudin 



DRACAENA GUIANENSIS Daudin 



1803. Dracaena guianensis Daubin, Hist. Nat. Reptiles, vol. 2, p. 423 (type 

 locality, Saint-Frangois River, Brazil). 



South America. — One specimen, No. 71729. received from A. Foehl, 



Genus EUSPONDYLUS Tschudi 



1845. Euspondylus Tschudi, Fauua Peruana, Heijiet.. \k 41 (type species, 



E. maculatus Tschudi). 

 1881. Prionodactylus 0"Shaughnessy, Proc. Zool. Soc. London, p. 231 [type 



species, Cercofiaura (Prionodactylus) maiiicata O'Shaughnessy]. 



Since the keeling of the dorsal scales is highly variable in speci- 

 mens belonging to this section, it has been necessary to unite 

 Euspondylus and Prionodactylus. 



EUSPONDYLUS OCKENDENI HOLMGREM (.Andtrsson) 



1914. Prionodactylus holmgrenl Andersson, Arkiv. Ztml.. vol. 9, no. 3, p. 9 

 (type locality, San Fermin, northwest Bolivia). 



This lizard is very closely allied to E. ockendeni ocTcendeni of 

 adjacent areas in Peru. 



A single specimen of holrngreni, U.S.N.M. No. 59013, which has 

 no definite locality data, shows the characters of the subspecies, as 

 follows : 3 supraoculars ; nasal plate divided : 1 frontonasal ; 27 

 transverse series of ventral plates ; 37 scales from the occiput to the 

 base of the tail: 30 scales around the middle of the body. 



EUSPONDYLUS OCKENDENI OCKENDENI (Bonlcnger) 



1907. Prionodactylus ockendeni Boxjlenger, Ann. Mag. Nat. Hist., ser. 7. 



vol. 19, p. 486 (type locality, Carabaya, eastern Peru). 

 1911. Prionodactylus spinalis Boulenger, Ann. Mag. Nat. Hist., ser. 8, vol. 7, 



p. 23 (type locality, Huaneabamba, eastern Peru). 



Euspondyli in southern Peru show a range of variation which 

 includes the diagnoses of both ockendeni and spinalis. Barbour and 

 Noble (1921) have shown that the type locality of splnaJis is no 

 doubt in error and that the species may be considered as belonging 

 to the area of southern Peru. Therefore, the previously described 

 ockendeni takes j^recedence over spinalis. 



The variation exhibited by the specimens listed below may be 

 summarized as follows: Supraoculars 3 or 4; nasal plate divided or 

 entire ; 1 frontonasal ; 20 transverse series of ventral plates ; 40 to 

 45 scales from the occiput to the base of the tail; 40 to 46 scales 

 around the middle of the body ; dorsal scales smooth or keeled, often 

 smooth anteriorly and keeled posteriorly. 



