Named for Dr. Alfred G. Mayer, of the Carnegie Institution of Washington.
Aeolis gundlachii Peters.
Eight examples, the largest 176 mm. in total length, from a small settle ment up the Rio Grande, 2 miles above Arecibo, Porto Rico, on June 12, 1915.
Color in alcohol uniform dull brownish-olive generally above. Lips pale or whitish. labials obscurely dusted with sooty dots. From gape of mouth back, including ear, whitish band well defined and extending to groin. Immediately below this a gray-brown narrow area all along to groin, fading out in pale color of lower surface, which is largely whitish. Nearly all examples show belly with very pale blue-green tinge. Dewlap yellow-ocher. Some examples are more grayish than others and most show fine specks or dots of dusky on the side above and the costal region below pale lateral streak. The con trasted and bright markings noticed by Dr. Stejneger in living examples are not evident in these preserved specimens. Dark cross-blotches are, however, seen obscurely, though in smaller examples they are far more noticeable. Scales of the supraocular semicircles usually separated by one row of scales at least, often two rows present, and sometimes partly in contact.
Besides the above, 6 examples were obtained from Utuado. These often show but a single row of scales separating the supraocular semicircles.
Aegis eristatellus Duntern and Harem. Figure 5.
A very large series, represented by nearly 300 specimens from various local ities. A large series from Guanica, Porto Rico, shows usually the supraocular semicircles in contact, though the size and disposition of the plates present great irregularity. In color some are very finely vermiculated with darker lines. Often the upper surfaces of the limbs present an obscurely barred appearance, and in some cases they are finely vermiculated. Many examples are more or lees olivaceous. In a small series from Guanica one example shows a quite distinct whitish vertebral stripe. Several are pale or light gray.
A large series from Utuado, collected both in the town and down the Arecibo River, June 12, are very variable, both in color and squamation of the head. In color these examples appear much more mottled than others. The chin
and throat are variable, and may be streaked or uniform, especially in small or young examples. Some show a considerably developed nuchal crest. Often the labials may be marked with dark blotches, giving the lips a cross barred appearance. Some examples show five or six obscure dusky or blackish saddles on the back. Occasionally a pale vertebral band is seen down the back. Though the squamation of the head is quite variable, usually the supraocular semicircles have two pairs of plates in contact, often one or two small ones may be interpolated in the median line, and occasionally a median series of small scales (in one instance double) entirely separates them. The largest of this series is 175 mm. in total length.
Thirteen examples obtained at a small settlement up the Rio Grande, 2 miles from Arecibo, on June 14, 1915. Several show a pale vertebral streak on the back and a longitudinal blackish streak along each side of the back, mostly with narrow pale bordering line. Sides of body may also present obscure irregular dark blotches forming smaller spots or speckled appearance below. In some, the lower surface of the body is yellowish in alcohol.
Two from the Arecibo River near the 70-kilometer post, June 14, 1915. One light gray, conspicuously mottled with darker, another with the pale vertebral band bordered each side with a blackish lengthwise band.
A large series from the Virgin Islands, many showing the white vertebral band on the trunk, occasionally interrupted. Many have the chin speckled. Frequently a dark spot occurs behind the occipital plate, sometimes divided to form one on each side.
AneUs stratalus Cope.
Four from Guanica, 2 from Utuado, 3 from a small settlement up the Rio Grande 2 miles from Arecibo, Porto Rico, and 3 from the Virgin Islands. Considerable variation in color is noticeable and a few show distinct dark saddles on the back. All are more or less finely speckled with darker color; in some cases the marbling gives quite a variegated pattern, due to the variable small or large dark spots. The Virgin Islands examples show the back marked with blackish transverse saddles. Dewlap bright yellow in alcoholic speci mens.