. Bulletin. Science; Natural history; Natural history. 70 HI I SOUTHERN CM IIORNIA ACADEMY OF SCIENCES VOLUME 73. Figure 2. Top, right lateral view of the rostrum of an adult female Lcptonycteris curasoae (KU 118206) showing the hyperdontia of the canine. Bottom, occlusal view of same. of Leptonycteris also were encountered in the owl-pellet material from the floor of the cave. Hyperdontia in the genus Leptonycteris was encountered only in the species L. sanborni by Phillips (1971:76). In our series of L. curasoae from Margarita Island, we found one adult female (KU 118206) with a unila
. Bulletin. Science; Natural history; Natural history. 70 HI I SOUTHERN CM IIORNIA ACADEMY OF SCIENCES VOLUME 73. Figure 2. Top, right lateral view of the rostrum of an adult female Lcptonycteris curasoae (KU 118206) showing the hyperdontia of the canine. Bottom, occlusal view of same. of Leptonycteris also were encountered in the owl-pellet material from the floor of the cave. Hyperdontia in the genus Leptonycteris was encountered only in the species L. sanborni by Phillips (1971:76). In our series of L. curasoae from Margarita Island, we found one adult female (KU 118206) with a unilateral duplica- tion of the upper right canine (Fig. 2). Another adult female (KU 118193) exhibited a persis- tent left upper deciduous canine in the space between the permanent canine and first premolar; all teeth were fully erupted and partially worn. Our sample also indicates that incisors are appar- ently lost frequently during life. In two individuals upper premolars had been lost and in another the second right upper molar was lost. Pirlot ( 1965:607) evidently was unable to com- pare his material from Margarita Island with specimens from Aruba, Curacao, or Bonaire when he described L. c. tarlosti. Table 3 shows selected external and cranial measurements (average with extremes in parentheses) of specimens of L. cura- soae from Margarita, Aruba, Curacao, and Bonaire islands. As can be seen, there is a great deal of overlap, especially between individuals from Margarita and Aruba. Although individuals from the oceanic islands Curacao and Bonaire appear to have somewhat narrower crania, a meaningful interpretation of any geographic trend is difficult with so few specimens. There appears to be little evidence to support the recognition of the population from Margarita Island as a distinct race. The species is widespread along the coastal lowlands of northern Colombia and Venezuela (Marinkelle and Cadena, 1972:53; Matson and Brown, 1974) and we believe that an analysis of geogr
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