PROC. BIOL. SOC. WASH. 101(1), 1988, pp. 1-3 A NEW SUBSPECIES OF LEIOCEPHALUS PERSON ATUS (SAURIA: IGUANIDAE) FROM HAITI Frank Gali, Albert Schwartz, and Alejandro Suarez Abstract. —A new isolated subspecies of Leiocephalus personatus is described from near the southern coast of the Haitian Tiburon Peninsula. Comparisons are made with its most closely related geographical congener, L. p. personatus. Schwartz (1967) recorded one female Leiocephalus personatus Cope from the town of Aquin, Departement du Sud, Haiti, which he questionably assigned to the subspecies L. p. personatus. Aquin lies on the southern coast of the Haitian Tiburon Peninsula, and the locality is separated from the nearest population of L. personatus by the inter-vening Massif de la Hotte. Much additional material, collected by Richard Thomas, from the Aquin area allows us to clarify the status of the population of Aquin L. per-sonatus, which is distinct from L. p. per-sonatus, and for which we propose the name. Leiocephalus personatus elattoprosopon, new subspecies Holotype.-USNM 197370, adult male, ca. 1 km inland, basal portion of the Mome Dubois "peninsula," Dept. de Sud, Haiti, one of series collected 20 Jul 1971 by native collectors; original number ASFS V26037. Paratypes.—{K\\ from Haiti, Dept. du Sud): ASFS V26036, same data as holo-type; CM 83051-60, MCZ 156222-31, MNHNSD 221-30, USNM 197383-91, Aquin, 12-13 Jul 1971, native collectors; ASFS V25793, ca. 1 1 km SE Vieux Bourg d' Aquin, 14 Jul 1971, native collectors; ASFS V26030-31, beach area at base of Morne Dubois "peninsula," 20 Jul 1 97 1 , R. Thomas; ASFS V2605 1-621, basal area at the base of the Mome Dubois "peninsula," 21 Jul 1971, native collectors. Associated specimen. —ASFS V25728, Grosse Caye, south of Aquin, Dept. du Sud, Haiti. Diagnosis.— \ subspecies of Leiocepha-lus personatus characterized by pale gray middorsal region with pale buff lateral stripes; ventral color pale green with very pale green (nearly white) spotting; mask present but restricted and usually dorsal to ear opening; chin and anterior throat dark gray rather than black; sides red with pale gray-green centers to scales; median dorsal scales between occiput and vent 40-63 {x = 50. 1 ± 1.7 = twice standard error of mean), median rows of dorsal scales 19-40 (28.6 ± 1.6). Distribution. —Departement du Sud, Hai-ti, from the vicinity of Vieux Bourg d' Aquin northward to Aquin and onto the Morne Dubois "peninsula"; presumably also Grosse Caye off this southern coast. Description ofholotype. —Adult male with following measurements and counts (all measurements in millimeters): SVL (snout-vent length) 80, tail length 105; dorsal crest scales occiput-axilla 16, dorsal crest scales on trunk 26; one-half midbody scales 22; subdigital fourth toe tricarinate scales 22/ 22; loreals 4; 4 prefrontal scales, row in-complete; 7/8 supraocular scales; supraor-bital semicircles incomplete; parietal scales in contact. Dorsal ground color pale gray, dorsolat-eral stripes pale buff in life but faded in preserved specimen; sides red with pale gray-green centers to scales, becoming greener on lower sides, with gray to pale stripes which
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