Phallocryptus Biraben, 1951

Rogers, D. Christopher, 2003, Revision of the thamnocephalid Genus Phallocryptus (Crustacea; Branchiopoda; Anostraca), Zootaxa 257, pp. 1-14 : 3

Genus Phallocryptus Biraben, 1951

( Figure 1 a­c)

Branchinella Smirnov, 1948

Phallocryptus Biraben, 1951 ; Belk & Brtek, 1995; Brtek, 1995

Diagnosis: Fully extended penes short, extending to the base of the second post­genital abdominal segment. Basal portion of penes rigid and may be tuberculate ventrally. Rigid basal portion of penes with a distal­medial patch of recurved spines. Distal eversible portion of penes soft, expanded in the distal third. Eversible portion of penes with medial surface bearing a longitudinal row of papillae like spines, and the ventral surface with a longitudinal ridge bearing large papillae like spines. Dorsal surface of extended penes with a small cluster of spines on the distal fourth. Penal apex a conical projection, directed medially, subtended by three large spines. Brood pouch sub­conic to pyriform, extending to the base of the second or third post­genital segment. Male abdomen spinose ventro­laterally. Male second antennae attached anteriorly on head, partially fused and projecting ventrally. Distal segment of second antennae arcuate. Female second antennae lamellar, with acute apicies, with the basal­medial margins projecting and partially connected. Resting cysts spherical, with shallow subcircular to slit shaped impressions. Phallocryptus wrighti type species. Three species occur in the Americas, Africa, and western Eurasia.

Figures

FIGURE 1. Phallocryptus, male genitalia: A) P. w r i g h t i; B) P. sublettei; C) P. s p i n o s a.