Ventrals

Females have from 122 to 137 (mean, 130.8 ± 0.26; N = 107) ventrals; males have from 117 to 131 (mean, 122.3 ± 0.21; N = 139; [Fig. 2]). Of the 246 specimens examined, 29 (11.8%; 11 females and 18 males) have an added

half-ventral immediately anterior to the anal plate. Of these specimens, 27 have the added half-ventral on the left side and two have it on the right. Five specimens have the last ventral divided similar to the normal division of the anal plate. One specimen has the last ventral incompletely divided transversely. Excluding the last ventral, seven specimens have divided ventrals (half-ventrals). Four of these specimens have added half-ventrals on the right side (two specimens with one half-ventral each, one specimen with two half-ventrals, and one specimen with three half-ventrals), and four have added half-ventrals on the left side (one half-ventral on each specimen).