Phonotimpus perra sp. nov.

Figures 52–54, 97–100

Type material. Female holotype from the Cueva Capilla de La Perra, La Perra, 8 mi NW Gómez Farías, [23.1065811°N, 99.2569952°W], Tamaulipas, Mexico (July 2, 1969; S. Peck, R. Norton), deposited in AMNH .

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. The epigynum of this cave species resembles that of the surface species P. cumbres sp. nov. and P. farias sp. nov. but differs in having wide, semicircular, laterally directed atria and small, rounded spermathecae more widely separated (about twice their diameter) (Figs 52–54).

Description. Male: Unknown.

Female (holotype, in poor condition): Total length 2.39. Carapace yellow, with only vague indications of darker maculations, pars thoracica gently sloping, pars cephalica flat; sternum, mouthparts yellow, unmarked, each cheliceral paturon with two strong, erect bristles laterally near base; abdomen ovoid, dorsum light gray, with only vague indications of three tiny white chevrons posteriorly, scutum light gray, very small, triangular, occupying about one-half of abdomen width and about a quarter of its length, sides light gray, with oblique, longitudinal rows of white spots, venter white, unmarked (Figs 97–100); legs yellow, unmarked. Leg spination: femora: I d1-0-0, p0-0-2; II d1-0-0, p0-0-1; III–IV d1-0-0; tibiae: I v4-4-4; II v4-4-2; metatarsi I, II v2-2-3.

Epigynum large, with two wide, semicircular atria separated by a narrow septum; copulatory openings at the lateral side of each atria, posterior rims arched, widely separated; first part of copulatory ducts directed laterally, then second part directed posteriorly; bursae large, subtriangular, almost contiguous; rounded spermathecae much smaller than bursae, separated about two diameters, touching posterior margin of epigynum; secondary spermatheca tiny, fingerlike, arising at union between copulatory duct and spermatheca; fertilization ducts arising at center of spermathecae (Figs 52–54).

Distribution. Known only from a cave in the Municipio de Gómez Farías, Tamaulipas (Fig. 339).