REPTILIA. 319 



same in both species being 16 above and 18 below. The species, however, really 

 differ widely, in that A. manni has eight femoral pores and A. caeca only four. 

 The new Haitian form has a greater number of rings on the tail, 24, against an 

 average of 17. The number of body rings is high, 227. This is exceeded by an 

 occasional specimen from Porto Rico. 



The paratypes show that the number of femoral pores is regularly high. 

 Two having eight and the other (abnormal in other respects) but seven. The 

 tail rings number twenty-three to twenty-five except in this abnormal example 

 in which the tail is much reduced there being only seven rings. It shows no sign 

 of injury and is probably simply malformed. It is hard to imagine how an 

 Amphisbaena could have had its taU accidentally removed. 



The apparent anomaly in distribution presented by the fact that there were 

 two species of Amphisbaena on Cuba and Porto Rico and but one on Haiti is 

 now cleared up. Before Mr. Mann left for Haiti I suggested that diligent 

 search would reveal a new Amphisbaena, and it is fitting that it should bear his 

 name. 



Amphisbaena caeca Cuvier. 



CuviEK, Reg. anim., 1829, 2, p. 73. Stejneger, Rept. U. S. nat. mus. for 1902, 1904, p. 676, fig. 129- 

 132. 



The habits, habitat, and relationships of this species have been fully dis- 

 cussed by Stejneger. The species is confined to Porto Rico. 



Amphisbaena bakeri Stejneger. 

 Stejneger, Rept. U. S. nat. mus. for 1902, 1904, p. 681, fig. 183. 



A well-defined species, confined to Porto Rico where its distribution seems 

 to be very local. The only specimens known which bear a definite locality 

 record are from Lares. This is in sharp contradistinction to the distribution of 

 A. caeca, which occurs widespread over the entire island. 



Amphisbaena fenestrata Cope. 

 Cope, Proc. Acad. nat. sci. Phila., 1861, p. 76. Boulenger, Cat. lizards Brit, mus., 1885, 2, p. 449. 



This distinct species is confined to the Virgin Islands. The types came 

 from St. Thomas and St. Croix. It has since been recorded from St. John, which 

 with St. Thomas formed the type locality of the synonymous species, A. antil- 

 lensis Reinhardt & Liitken. 



