Australolestes Just, 2011

Just, Jean, 2017, A fresh look at the higher classification of the Siphonoecetini Just, 1983 (Crustacea, Amphipoda, Ischyroceridae) 12: with a key to all taxa, Zootaxa 4320 (2), pp. 321-338 : 332

Australolestes Just, 2011 , stat. nov.

Ambicholestes (Austrolestes) Just, 1998: 42 ,—homonym (Insecta, Odonata ). Ambicholestes (Australolestes) Just, 2011: 383 ,—new name.

Type species. Ambicholestes (Australolestes) berentsae Just, 1998 .

Diagnosis. Caribboecetina with elongate, l-articulate, apically pointed mandibular palp ( Fig. 2 2b ); palp overreaching mandibular incisor by 1/3–1/2 palp length. Inner lobes of lower lip complexly lobate ( Fig. 4 C ). Male antenna 2 at least as long as combined length of cephalon, pereon and pleon. Ocular field of eye lobes inflated. Basis of pereopod 7 with marginal setae and midlateral, longitudinal row of setae ( Fig. 4 E 1 ). Uropod 3 without ramus.

Component species. Australolestes berentsae Just, 1998 ; A. minutus Just, 1998 ; A. thetis Just, 1998 .

Figures

FIGURE 1. A. The relationship among the proposed tribes in the subfamily Ischyrocerinae based on clades identified by Lowry & Berents (1996). B. Subtribes in tribe Siphonoecetini as established here. (Illustrated: A, Cephaloecetes schioettei Just, 2017, in abode; B, Rhinoecetes coclearis Just, 2012 a, abode aggregation).

FIGURE 2. A, Ericthonini; B, Cerapodini; C, Siphonoecetini. 1, antennae; 2, mandibles; 3, gnathopod 1; 4, gnathopod 2 (c 1 simple and c 2 subchelate forms); 5 a, pereopods 5 – 7; 5 b, pereonite 5 with coxa; 6, telson with uropod 3. (A 2 from Lowry & Berents 1996; A 6 from Lowry & Berents 2005; B 2 from Krapp-Schickel 2013.)

FIGURE 4. A, lateral and dorsal views of heads of Rhinoecetes spp.; B, lateral view of head with pseudorostrum; C, complexly lobate lower lip; D, simple lower lip; E, pereopod 7; F, rami of uropod 1 of Rhinoecetes spp., G, uropod 3 with rounded ramus; H, natatory antenna 2 of Australoecetes sellicki.