Variation in the squamation is often seen. Some specimens show one or two pairs of plates of the supraorbital semicircles in contact.
Audis krugi Peters.
Five examples from Guanica, Porto Rico, now show the dewlap red.
Ten from Utuado, on June 12, show the dewlap crimson in alcohol. Sides and lower surface largely brilliant yellow. In these examples the squamation of the supraocular semicircles is often quite variable. While they may be separated by one row of scales, or sometimes two rows, the rows are frequently incomplete, so that the supraoculars may be in contact with at least one of their pairs.
Five from the Arecibo River near the 70-kilometer post, on June 14. These all have but one row of scales between the supraocular semicircles.
Seven very interesting examples from the Virgin Islands which agree very well with Dr. Stejneger's description and figures of Porto Rican material. In alcohol these examples are all pale brownish. A dark brownish, well defined streak alongside of snout below canthus rostralis to eye and contin ued back from latter well above ear alongside of back, and on trunk more or less broken into spots irregularly to groin. Below ear on each side of lower surface of head a brownish streak to shoulder, though not evident in young. Upper surface of body or back between dark lateral bands with speckling of brownish, mostly obscured, and arranged largely in lengthwise courses. Sim
ilar markings also seen on upper surface of head in some examples.
Variation is seen in the scales separating the supraocular semicircles. In one case a pair of plates of the latter are largely in contact, in another instance two rows of scales intervene, while in the other a single complete row occurs.
Anotis. poneensis Stejneger.
Four from Guanica, Porto Rico. This species was heretofore known only from the type locality at Ponce, where it was obtained April 16, 1900. It differs from the other Porto Rican species of AraLis in the completely keeled scales of the back, sides, and belly. In coloration my material agrees with Dr. Stejneger's account, the young or smaller example showing the pale ver tebral band bordered on each side by a dusky parallel and equally wide band. It also shows a pale obscure orange blotch at and on each side of the occiput, the whole three indistinctly joined. One example is conspicuously greenish above, mottled with dusky.
The squamation of the supraocular semicircles is sometimes quite irregular, and these may have two pairs in contact or be separated by a very narrow median row.