REPTILIA. 329 



island of Navassa, where the mongoose has probably not been introduced. In 

 Jamaica I found it extremely rare, and got only one specimen, the mongoose 

 being undoubtedly responsible for its* scarcity. From Haiti the Museum has 

 but two specimens. From Cuba there are three, two from Havana and one 

 from Soledad, near Cienfuegos. While the specimens from each of these locali- 

 ties show certain peculiar characteristics in coloration, their squamation does 

 not vary definitely. The series from Jamaica, Haiti, and Cuba seems to belong 

 to the same species. 



Mr. Mann's recent collection contains three specimens from Cape Haitien 

 and one from Diquini, Haiti. In only one is the interparietal present as Cope 

 supposed is always the case with Haitian examples. In three examples the scale 

 rows number 27 and in one 25, in none 29. This is the number also declared a 

 character of T. haetiana. Nevertheless much more material is needed to show 

 that the place modes do not differ with series from the several islands. I may 

 be quite wrong and inconsistent in not allowing T. haetiana to stand separately 

 but there is not much proof of its distinctness. 



Tropidophis semicincta (Gundlach & Peters). 



Gundlach & Peters, Monatsb. Akad. wiss. Berlin, 1S64, p. 388. Boulenger, Cat. snakes Brit, mus., 

 1893, 1, p. 113. 



Apparently a very rare species, confined to Cuba. Unfortunately I was 

 unable to obtain a single specimen of this species. There is a fine example in 

 the Gundlach collection in the Instituto de Segunda Ensafianza at Havana, 

 and two in the U. S. national museum at Washington. 



Tropidophis conjuncta Fischer. 



Fischer, Jahresb. Hamb. wiss. anst., 18S8, 5, p. 31, pi. 3, fig. 5. Boxtlenger, Cat. snakes Brit, mus., 

 1893, 1, p. 113. 



Another obscure and little-known species, confined to San Domingo. 



Tropidophis cana (Cope). 

 Cope, Proc. Acad. nat. sci. Phila., 1868, p. 129. Boulenger, Cat. snakes Brit, mus., 1893, 1, p. 114. 



A very distinct species confined to the island of Inagua in the southern 

 Bahamas. 



Constrictor orophias (Linne). 



Linne, Syst. nat. ed. 10, 1758, 1, p. 215. Boulenger, Cat. snakes Brit, mus., 1893, 1, p. 118. 



Stejneger, in showing that for these large tree snakes the generic name 

 Constrictor should be used instead of the long-established Boa, remarked at the 



