The back of the head bears a broad U-shaped light mark, edged anteriorly and laterally with brown. Keelson throat scales below the corner of the mouth are equally distinct.
NO. 7 HERPETOLOGICAL COLLECTIONS COCHRAN 9
Snout relatively short, length only twice the diameter of the eye; eye slightly closer to the ear than the tip of the muzzle; rostrally large, with a median groove and a more or less distinct semilunar lateral groove; nostril between rostral, one large supranasal, two postnasal and the first supralabial; supranasals separated by a single medium-sized scaly spine; three large supralabials to a point below the center of the eye, with a very small fourth ending the series; three infralabials to the same point, the first very much enlarged, this series also ending with a very small fourth scale; the top of the snout covered with keeled polygonal scales that decrease considerably in size between the eyes and become almost granular.
NO. 7 HERPETOLOGICAL COLLECTIONS COCHRAN II
In the case of the Boqueron male, the dorsal surfaces are a uniform pale layer, without punctuation of any kind. In the female, the characteristic banding pattern appears as usual, but the male has heavy patches of thick brown spots covering the entire dorsal surface from between the eyes to the beginning of the reared tail.
NO. 7 HERPETOLOGICAL COLLECTIONS COCHRAN I3
The main dorsal part of the body is yellowish green from the nape of the neck to the tail. There are unevenly distributed orange spots on the throat and from there to the front leg, while the back part is of a uniform color.
NO. 7 HERPETOLOGICAL COLLECTIONS COCHRAN 1
NO. 7 HERPETOLOGICAL COLLECTIONS COCHRAN I7
The belly is olive in color and there are several longitudinal series of dark dots starting on the labials and chin and leading backwards to the sides of the neck. The skin and scales of the dewlap are olive yellow on the back and olive gray on the front. The top of the head is light clay-coloured and the upper part of the back, the Hmbs and the tail are pale grey, with some distinct sepia vermiculations on the nuchal fold and behind the axilla.
Some juvenile and semi-adult lizards show a distinct longitudinal dorsal stripe consisting of a pale mid-dorsal and a sepia double stripe on each. Some show light lateral stripes that abruptly cease with the clay color characteristic of the upper surfaces of juveniles. The coloration of these Caicos lizards matches that of the neighboring Turks Island form, both being much paler than many Mariguanalizards and much less mottled than the typical Inagua form.
Ground color grey-grey above, lavender-grey below, often with a clove-wide brown lateral band originating in the loreal region, passing through the eye and above the ear and extending over the shoulder, continuing to the base of the tail and gradually fading; a light area usually bounding its lower border; a second dark lateral band, beginning on the small area just behind the mental, continues back below the ear, and in some cases merges before the shoulder with the upper lateral band, and in other cases extends and imbues the whole side of the throat and the upper arm with brown spots; scales fan gray, scales white or olive yellow. Juveniles have dark latero-ventral webs, and the throat usually has a series of dark longitudinal lines. Description of species.— Top of head with two curved frontal ridges surrounding a shallow median depression; scales on head very unequal in size, small flat, larger with a very indistinct ridge or keel; rostral low, much narrower than mentals.
20 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 92
Sad-grey above, lighter l)cncath; traces of a clove-brown lateral stripe beginning on the lorealistic region, continuing behind the eye above the ear to the shoulder region, where it intensifies in color, then widens and gradually fades out posteriorly; another clove-brown stripe ])ommencing on the malar region, continuing behind under the ear and joining the ui)per stripe in front of the shoulder: upper parts of limbs and base of tail irregularly spotted with large clove-brown spots; skin of gular fan lavender-grey, the scale is white with a very fine dusting of small black dots. Occipital can be set off from the supraorbital semicircles by two to four very irregular scales. On the other hand, it may be obscured by a highly melanistic condition where the entire upper surface is.
Some of the Inaguan and Turks Island lizards are at least 70 mm and appear to be heavier in structure, although the difference here is difficult to measure. The Turk Island form is very light in color and lacks the broad dark lateral strij^c which almost always occurs in Mariguana lizards.
22 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 92
The true status of this species is very doubtful, and this identification must be regarded as provisional until specimens from all the localities from which they are now recorded have been carefully compared. A detailed comparison of the lizards from Bequi and Carriacou with specimens from Grenada, including one of the cotypes of Anol'is trossulus Garman, makes it clear that they are similar on all essential scales. 7 HKkPF.TOLO(;iCAI, (Of.r.F.CTIONS COCHKAN 25. dorsal pale stripe was vinaceous-cinnamon, while the head, neck region and shoulders were dovc-crested.
75762, only the scales at the edge of the cover were chrome yellow, the other gular scales were carved in carnation like the gular skin itself. An adult male, U.S.N.M.nr.79002, has the top of the head with two low-divergent frontal ridges, disappearing before reaching the level of the nose and enclosing the weakly prominent frontal head.
26 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 92
There is a faint hint of lateroventral spots on two of the females, but otherwise the lizards are spotless. Diagnosis .—NdiSdXs broadly in contact rostrally and with each other; a pair of supranasals also closely in contact with each other; the scales in the prefrontal area are fairly uniform in size and shape and are divided into the smaller frontal and parietal scales; supra-. A very detailed study of the variations of carinatusin Cuba will be necessary for an understanding of the status of the forms on some of the outer islands.
Johnson's Cay.— We took a few lizards of the curled tail type, but the tail appears to be more barbed on the back than the previous type, but this one. In fact, the tail is very spiny in every adult specimen from all the cays mentioned above. Diagnosis. - Closely resembles the Cuban Leiocephalus carinatus, but differs from it by having a larger scale at the upper front part of the ear, and by having a more vivid color pattern with a somewhat different arrangement of light and dark pigment especially on the head.
Description of species.-- Main shields large, anterior part smooth, posterior part very slightly ridged; four scales (internal and three prefrontal) in a line between the rostral and the beginning of the supraorbital rinq-; prefrontal and internasal comprise part. In coloration, light longitudinal lines are usually visible, while a dark head with a contrasting sheen of light markings is an almost invariable condition. The throat of most adults has dark, narrow lines that converge anteriorly; in the type this pattern is heavily obscured and interrupted by numerous very light scales.
The scales on the upper surfaces of the limbs in the new form seem somewhat smaller and. The similarities between the two forms outweigh these minor differences, and it is recommended that the new lizard be assigned only atrine until further study of the typical Carinatus from Cuba.
36 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 92
The legs of the backs and sides are directed back and slightly up, so that the rows of scales converge slightly. Average muzzle scales are from three to six inches; when more than three are present, it is usually because one or more original writings have been split lengthwise. The first of the series are usually in contact, but the third is usually separated from this second by the second prefrontals, which are non-contact.
The clasped hind leg reaches to the center of the eye or to its anterior corner in adults; in the very young male it reaches almost to the nostril. In color, it suggests somewhat loxogrammus the presence of the black spots on the sides of the neck, but otherwise the patterns are not the same. The prefrontals of Loxogrammus are very different from those of the new species - the prefrontals of Loxogrammus are only two in number, the posterior ones very large and elongated. the same arrangement is found in raviceps in Cuba.
There is a stranded species that partially curls its tail, probably related to the curled-tail lizard. By examining the prefrontal scales, this species is fairly easy to distinguish from the other three members of the genus, which also occur in Cuba. He considers them to be the same, although he notes that in both types of specimens the scales on the sides are subimbricate and much more lanceolate than in the example from the United States National Museum.
42 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. ()2
There are absolutely no traces of the three broad black stripes that characterize Carman's Anieiva tnaynardii. The three of Flamingo Cays are much lighter in color than usual, with the black dorsolateral line barely visible on the posterior part of the body, and not present at all anteriorly. Most adults from the latter series are dull black in color, uniform or with tiny white spots.
In the Puerto Rican and Hispaniola forms the first supraocular is very small, while these are very large indeed. A pair of enlarged nuchal scales is present in this specimen, with traces of a second pair on some fused scales on one side of the neck. With so little material from Hispaniola, and this single injured specimen from the Bahamas, it is best called Mabuya.
Those from the mainland seem to fall into two groups, one having 43 to 47 scales, the other 51 to 55. A new snake attributed to this species now U.S.N.M.nr.81536, from Double Headed Shot Cay of TheCay Sal Group, obtained in June. At Flamingo Cays of the Ragged Island Group, a snake of this species was collected on June 27, 1930, U.S.N.M.
48 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 9J
