EAST AFRICAN REPTILES AND AMPHIBIANS 83 



natives, who carry it ashore and leave it above high-water mark for 

 the land gang to remove inland. The converse process also occurs 

 at daybreak, or when the dhow appears in sight, a safari of porters 

 arrives at the beach, deposit their loads as near high water mark as 

 possible,' and return for more; there the loads remain for hours, or 

 even days, while the dhow is unloading and until she is r^ady to take 

 cargo on board. What more likely than that a few skinks, disturbed 

 perhaps by an approaching native, seek refuge in a bundle of hides 

 or bale of market produce and, being taken up, get transported to 

 the dhow? I can scarcely credit that the skink on Mozambique 

 Island is in any way specifically distinct from that on the near-by 

 mainland. In 1918, as I recollect, there was a daily dhow ferry 

 service between Lumbo and Mozambique Island for the transport 

 of natives who took their garden produce to sell in the market on 

 the island. 



Suborder Rhiptoglossa 

 Family CHAMAELEONTIDAE 



Genus CHAMAELEON Gronovius 3« 



CHAMAELEON SENEGALENSIS LAEVIGATUS (Gray) 



Chamaeleon laevigatus Gray, 1863, Proc. Zool. Soc. London, p. 95 (500 miles 



south of Khartoum). 

 Chamaeleon senegalensis (part) Boulenger, 1887, Cat. Lizards Brit. Mus., vol. 



3, p. 447. 

 Chamaeleon senegalensis laevigatus Gunther, 1888, Proc. Zool. Soc. London, p. 

 50._ScHMiDT, 1919, Bull. Amer. Mus. Nat. Hist., vol. 39, p. 580, text 

 map, pi. 30, fig. 2. 



1 (U.S.N. M. 37301), Uganda. (Werner) N. D. 



2 (U.S.N. M. 42013-4) Fort Hall, K. C. (Sm. Afr. Exped.) 1909. 

 1 (U.S.N. M. 42221) Kikonda, U. (Sm. Afr. Exped.) 1909. 



1 (U.S.N. M. 42254) Sururu, L. E. (Sm. Afr. Exped.) 1910. 

 1 (U.S.N.M. 63474) Nabea, U. (Raven) 1920. 



With the limited material at my disposal, which, besides the fore- 

 going, consists of only 6 West, 1 Central, and 1 East African example 

 in the Museum of Comparative Zoology, it is possible to uphold 

 laevigatus as a race. Schmidt distinguished the two forms as follows: 



Lateral crests distinct; casque raised from nape (Western) senegalensis. 



Lateral crests distinct, faint parietal crest nearly continuous with 



the low dorsal crest (Eastern) laevigatus. 



By lateral crests I take it that the posterior lateral are m.eant, and 

 in this character the Senegal and Senegambia specimens in the Mu- 

 seum of Comparative Zoology certainly show more strongly devel- 

 oped crests than specimens from the Cameroons, Victoria Nyanza, 

 or Meru District of Kenya Colony, or any of the National Museum 



K 1763. 



