Branchinella Sayce 1902

Rogers, D. Christopher, 2006, A genus level revision of the Thamnocephalidae (Crustacea: Branchiopoda: Anostraca), Zootaxa 1260, pp. 1-25 : 15-16

Genus Branchinella Sayce 1902

Branchinella Sayce 1902 ; Linder 1942; Geddes 1981; Timms 2001, 2002, 2004, 2005; Timms & Geddes 2003; Remigio et al, 2003; Timms et al. 2004.

Podochirus Schwartz 1917 .

Diagnosis ( Figures 1 G–I). Fully extended penes reaching to third, fourth, or base of fifth abdominal segment. Penes may be entirely retractile, or bearing short, rigid, tubular chitinized basal portions, which may each bear a single ventrolateral tubercle. Rigid basal portion of penes without medial patch of spines. Distal eversible portion of penes soft, expanded in distal third. Eversible portion of penes with lateral surface bearing one or more longitudinal rows of large, dense, spines. Eversible portion of penes medial surface with large, small or a mixture of scattered spines sometimes in short rows. Penal apex truncated with a small, centered conical projection, directed distally. Brood pouch expanded proximally, narrowing abruptly to cylindriform structure, extending to base of fourth to seventh abdominal segment. Males with or without frontal appendage and/ or antennal appendages. Male second antennae attached anterior­ventrally on head, slightly coalesced at base, but otherwise free. Distal segment of second antennae arcuate or angled. Female second antennae lamellar, with truncate or slightly acute apices. Resting eggs variable.

This genus is comprised of two subgenera.

Figures

FIGURE 1. Representative left penes of thamnocephalid genera and subgenera: A) Thamnocephalus platyurus, ventral view; B) Carinophallus ornata upper image (with penes retracted) left ventrolateral view of genital segments; lower image ventral view of everted pene; C) Dendrocephalus c ervicornis, ventral view; D) Dendrocephalus (Dendrocephalinus) acacioidea, ventral view; E) Phallocryptus sublettei, ventral view; F) Gurneya mirus, ventral view; G) Branchinella wellardi, ventral view; H) Branchinella budjiti, ventral view; I) Branchinella (Branchinellites) ondonoguae.