Plate 1 issued from : C.O. Esterly in Proc. Am. Acad. Arts Sci., 1911, 47 (7). [Pl.1, Fig.1].
Female (from Bermuda Is.): 1, cephalothorax and part of abdomen (dorsal).
Nota: No rostral filaments. Absence of spines on A1. A1 reach back to the end of the genital segment.

Plate 2 issued from : C.O. Esterly in Proc. Am. Acad. Arts Sci., 1911, 47 (7). [Pl.2, Figs.10, 17, 18].
Female: 10, part of last thoracic segment and urosome (dorsal); 17, idem (lateral), with spermatophore.
Nota: Spines on the posterior border of the last thoracic segment much smaller, shorter and more numerous than in A. spinata. Genital segment almost as long as the rest of the urosome. Caudal rami about a third longer than wide

Male: 18, last thoracic segment and urosome (lateral).
Nota: The ventral goup of spines on the border of the last thoracic segment is replaced by hairs. Genital segment three-fifths as long as the 2nd segment, the 2nd a little longer than the 3rd and three times as long as the 4th. The length of the cephalothorax (along the mid-dorsal line) 3-times its gratest width.

Plate 3 issued from : C.O. Esterly in Proc. Am. Acad. Arts Sci., 1911, 47 (7). [Pl.3, Fig.22].
Male: 22, P5.

Plate 4 issued from : C.O. Esterly in Proc. Am. Acad. Arts Sci., 1911, 47 (7). [Pl.4, Fig.43].
Female: 43, P5.