PROC. BIOL. SOC. WASH. 101(1), 1988, pp. 1-3 A NEW SUBSPECIES OF LEIOCEPHALUS PERSONATUS (SAURIA: IGUANIDAE) FROM

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 Grosse Caye, south of , Dept. du , Leiocephalus personatus Cope from the town Haiti. ofAquin, Departement du Sud, Haiti, which Diagnosis.— \ subspecies of Leiocepha- he questionably assigned to the subspecies lus personatus characterized by pale gray L. p. personatus. Aquin lies on the southern middorsal region with pale buff lateral coast of the Haitian Tiburon Peninsula, and stripes; ventral color pale green with very the locality is separated from the nearest pale green (nearly white) spotting; mask population of L. personatus by the inter- present but restricted and usually dorsal to vening Massif de la Hotte. Much additional ear opening; chin and anterior throat dark material, collected by Richard Thomas, gray rather than black; sides red with pale from the Aquin area allows us to clarify the gray-green centers to scales; median dorsal status of the population of Aquin L. per- scales between occiput and vent 40-63 {x = sonatus, which is distinct from L. p. per- 50. 1 ± 1.7 = twice standard error of mean), sonatus, and for which we propose the name. median rows of dorsal scales 19-40 (28.6 ±

1.6). Distribution. —Departement du Sud, Hai- Leiocephalus personatus elattoprosopon, ti, from the vicinity of Vieux Bourg d' Aquin new subspecies northward to Aquin and onto the Morne Holotype.-USNM 197370, adult male, Dubois "peninsula"; presumably also ca. 1 km inland, basal portion of the Mome Grosse Caye off this southern coast. Dubois "peninsula," Dept. de Sud, Haiti, Description ofholotype. —Adult male with one of series collected 20 Jul 1971 by native following measurements and counts (all collectors; original number ASFS V26037. measurements in millimeters): SVL (snout- Paratypes.—{K\\ from Haiti, Dept. du vent length) 80, tail length 105; dorsal crest Sud): ASFS V26036, same data as holo- scales occiput-axilla 16, dorsal crest scales type; CM 83051-60, MCZ 156222-31, on trunk 26; one-half midbody scales 22; MNHNSD 221-30, USNM 197383-91, subdigital fourth toe tricarinate scales 22/ Aquin, 12-13 Jul 1971, native collectors; 22; loreals 4; 4 prefrontal scales, row in-

ASFS V25793, ca. 1 1 km SE Vieux Bourg complete; 7/8 supraocular scales; supraor- d'Aquin, 14 Jul 1971, native collectors; bital semicircles incomplete; parietal scales ASFS V26030-31, beach area at base of in contact.

Morne Dubois "peninsula," 20 Jul 1 97 1 , R. Dorsal ground color pale gray, dorsolat- Thomas; ASFS V2605 1-621, basal area at eral stripes pale buff in life but faded in the base of the Mome Dubois "peninsula," preserved specimen; sides red with pale gray- 21 Jul 1971, native collectors. green centers to scales, becoming greener on Associated specimen. —ASFS V25728, lower sides, with gray to pale stripes which PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON may be very indistinct; mask dark brown white) spotting. The throats are green and with dark gray in loreal region, mask re- ventrals are 40-64 {x = 50.1 ± 1.7), and stricted and ending dorsal to ear opening; median dorsal trunk scales are 19-40 top of head brown with gray supraocular (28.6 ± 1 .6). In L. p. personatus these counts scales; upper surface of hindlimbs dark green are 47-61 (53.5 ± 1.0) and 24-40 (32.4 ± with pale green spotting, forelimbs pale gray- 1.0), respectively. green with pale green spotting; chin and an- Remarks.— Leiocephalus p. elattoproso- terior throat dark gray rather than black, pon is similar to L. p. personatus in having followed by pale gray scales randomly a head scutellation formula of 3-5-4 (pre- smudging balance of throat; ventral ground frontals-medians-frontoparietals). Both color pale green (gray-green laterally) with subspecies have masks, but they differ in very pale green (nearly white) spotting; tail that the mask in L. p. elattoprosopon usually brown above and light brown below. is restricted dorsal to the ear opening, unlike Variation.— ThQ series of 55 specimens that of L. p. personatus in which the mask of L. p. elattopwsopon has the following extends half way to the forelimb insertion, scale counts: dorsal crest scales occiput-vent including the eyes and the loreal region, and

40-63 (Jc = 49.8 ± 1.7); dorsal crest scales as far anteriorly as the tip of the snout. occiput-axilla 16-27 (21.4); dorsal crest The distribution of L. p. elattoprosopon scales on trunk 19-40 (28.6 ± 1.6); tricar- as currently known is restricted to the Mome inate scales 15-26 (21.4); loreals 4-17 (5.7); Dubois "peninsula," and north to Aquin supraoculars 6/6 (30 specimens), 6/5 (1), and Vieux Bourg d' Aquin, a distance of

5/5 (2), 7/6 (10), 7/7 (6), 7/8 (4), 6/8 (2); about 0.7 km. semicircles more often complete (95%), and It is intriguing that Ameiva chrysolaema parietals usually in contact (91%). The pre- evulsa Schwartz (1973) and L. p. elattopro- frontal row varies between 3 and 5 scales sopon occur in much the same general area,

(Mo = 3), the median head shields are 4-8 although the former species occurs (as far (Mo =5), and the frontoparietal row is more as known) only on Grosse Caye, whereas L. often complete than not (49 of 55 speci- p. elattoprosopon occurs on the adjacent mens). The largest male has a SVL of 83 mainland, as well as on Grosse Caye. Both and is a topotype, and the largest females lizards represent southern outlier popula- measure 60 SVL and are from Aquin. tions of species that are limited, on the Ti- The series of specimens was described in buron Peninsula, to the northern coast life as follows. Males have a dorsal pale gray {Leiocephalus; 25 km) or extend only a short ground color; some adult males have pale distance along the coast west of Port-au- buffdorsolateral stripes obvious, others lack Prince {Ameiva; 85 km). Intervening areas, this feature. All males have 2 to 4 dark brown which have been intensively sampled, seem nuchal bars, more obvious in some than in not to harbor populations of either lizard. others. Sides have red scales with other pale It seems that the Aquin-Morne Dubois scales gray-green centered, the scales be- "peninsula" region has a peculiar relictual coming greener on the lower sides, and lim- fauna that was once more widespread, or ited ventrolaterally by gray to pale stripes continuous with relatives farther to the east which may be very indistinct. Mask dark and north. brown with dark gray in loreal region; mask Etymology. —The name elattoprosopon is present but restricted and usually dorsal to from the Greek elatton (less) and prosopon ear opening. In some specimens the mask (face, mask), in reference to the reduced dark extends further posteriorly than in others. mask in this subspecies in contrast to that The ventral ground color is pale green (gray- in L. p. personatus. The name is used as an green laterally) with very pale green (nearly appositional noun. VOLUME 101, NUMBER 1

Specimens examined. —(Other than L. p. in the meristic sections of the present paper. elattoprosopon; all are L. p. personatus from For these previous loans we are grateful to Haiti): Dept. du Sud, Jeremie (MCZ 3615, Ernest E. Williams, the late Doris M. Coch- two syntypes); Les Roseaux (MCZ 74626- ran, and the late James A. Peters. The ho- 39); 16 km E Baraderes (USNM 80773-66); lotype and paratypes of L. p. elattoprosopon Grand Boucan (USNM 80774-87); Pres- have been deposited in the cited collections qu'ile de Baraderes, vicinity of Grand Bou- as well as in the Carnegie Museum of Nat- can (ASFS V26282-338); Petit Trou de ural History (CM), the Museo Nacional de

Nippes (USNM 80788-98); 1 .7 km SE Anse Historia Natural, Santo Domingo a Veau (ASFS V42829); 2.7 km S Anse a (MNHNSD), and the Albert Schwartz Field Veau, 46 m (ASFS V43 187-88); Ti Anse, Series (ASFS). Specimens in the ASFS were ca. 9.5 km NW Miragoane (ASFS V26212- in part collected under NSF grant B-023603. 17); 9.7 km SW Miragoane (MCZ 25433); Dept. de I': Leogane (MCZ 13834- Literature Cited 37); 3.2 km SW, less than 1 .6 km E Leogane,

± 1 22 m (ASFS V83 1 7-22); Bayeux (USNM Schwartz, A. 1967. The Leiocephalus (Lacertilia, 75906); L'Acul (USNM 72607-12); just W Iguanidae) of Hispaniola. II. The Leiocephalus complex.— Tulane Studies in Zool- Grand-Goave (ASFS V365 52-68, ASFS personatus ogy 14(1): 1-53. V45471, ASFS V45513, ASFS V45528). . 1973. A new subspecies oi Ameiva chryso- laema (Sauria, Teiidae) from Haiti. — Herpeto- Acknowledgments logica 29(2): 101-105.

We wish to thank C. Butterfield, D. A.

Daniels, J. W. Norton, W. W. Sommer, R. (FG) 156 South Melrose Drive, Miami Thomas, and T. M. Thurmond for assis- Springs, Florida 33166; (AS) 10000 South tance in the field. Specimens in the Museum West 84th Street, Miami, Florida 33173; of Comparative Zoology (MCZ) and the Na- (AS) 7645 West 16th Court, Hialeah, Flor- tional Museum of Natural History (USNM) ida 33104. were borrowed by Schwartz for his 1967 paper, and data from them have been used Send reprint requests to A. Schwartz.