IGO Miller — Second Collection of Bats from Curacao. 



rostris of Colombia. Here the incisors were absent in about one-third of 

 the individuals, and the full set was present in less than one-half.* 



Mormoops intermedia sp. nov. 



■ Type adult female (in alcohol) No. 103,174 United States National 

 Museum, collected in cave at Hatto, on north coast of Curasao, "West 

 Indies, April 29, 1900. 



Characters. — Similar to the Mexican Monnooiis meg<dophylla Peters, 

 but smaller, the size intermediate between that of the two previously 

 known species; color (at least in brown phase) slightly darker than in 

 M. megalopJiylla. 



Color. — Brown phase: entire dorsal surface sepia, the fur paler beneath 

 the surface, and each hair tipped with light drab. The drab tips pro- 

 duce a distinct 'bloom' in certain lights. Underparts very pale yellow- 

 ish broccoli-brown, lightest on belly, flanks and pubic region, faintly 

 darker across chest. Red phase: like brown phase but entire pelage 

 sviffused with cinnamon. Pale phase: light salmon-bvitf above and be- 

 low, becoming more red about shoulders and head. Ears and membranes 

 dark broAvn in all three color phases. Individuals in the brown phase 

 are the most frequent: those in the red phase are less often met with; 

 while the pale ]3hase is corni^aratively rare. 



Membrnnes, ears, and other external characters as in Mormoops mega- 

 lophylla. 



Skull and teeth. — While the skull exactly resembles that of Mormoojis 

 megalophylla the teeth are distingiiishable by the greater size and conse- 

 quent crowding of the upper premolars. The anterior premolar is dis- 

 tinctly broader than in M. megalophylla and it usually fills the entire 

 space between canine and posterior premolar. The lower premolars are 

 slightly larger than in the Mexican animal. 



Measurements. — External measvirements of type specimen: total length, 

 80; tail, 20; tibia, 20; foot, 9; calcar, 20; forearm, 48; thumb, 6.4; 

 second digit, 45; third digit, 90; fourth digit, 6.6; fifth digit, 57; ear 

 from meatus, 14; ear from crown, 9.; Average of twenty topotypes: 

 tail, 20.9 (18-22); forearm, 49.6 (48-51).} 



Specimens examined. — One himdred and sixty-four from caves and rock 

 crevices in all parts of the island. 



Remarks. — Morvioops intermedia is readily distinguishable from M. 

 megalophylla by its size and more crowded upper premolars. With the 

 Jamaican M. blainvillii it needs no comparison. The color phases in this 

 bat are very striking. 



Natalus tumidirostris sp. nov. 



Type adult male (in alcohol) No. 102,106 United States National Mu- 

 seum, collected in cave at Hatto, on north side of island of Curasao, 

 West Indies, May 1, 1900. 



*Bull. Am. Mus. Nat. Hist., N. Y., xiii, p. 89, May 12, 1900. 

 f Average of twenty specimens of M. megalophylla from Mirador, Vera 

 Cruz, Mexico; tail, 27.8 (26-32): forearm, .54 (53-57). 



