Julmarichardia, Gutu, 1989

Moralés-Núñez, Andres G. & Heard, Richard W., 2021, Julmarichardiidae, a new apseudoidean family (Crustacea: Tanaidacea: Apseudomorpha) with the description of a new species of Julmarichardia Guţu 1995 from the Northwest Australian Shelf, Zootaxa 5081 (1), pp. 77-115 : 112-113

Key to the known adult females of the genus Julmarichardia , modified from Ritger & Heard (2007)

1. Antenna with article-2 lacking distinct marginal spines or tubercles ( Fig. 20A )........................................................................................... Richardjulmaia bajau Bamber & Sheader, 2005 gen. nov.

- Antenna with article-2 with distinct marginal spines or tubercles ( Fig. 20B–G )...................... Julmarichardia … 2

2. Rostrum with margins entire, smooth ( Fig. 20H )............................................ Julmarichardia sp. A

- Rostrum with margin weakly or strongly dentate ( Fig. 20I–M )................................................. 3

3. Rostrum triangular ending in an acute tip ( Fig. 20I–J )........................................................ 4

- Rostrum sub-triangular or spatulate ending in rounded tip ( Fig. 20K–M )......................................... 5

4. Rostrum strongly denticulate laterally, having 12–14 acute marginal teeth ( Fig. 20I )................ J. alinati Guţu, 1989

- Rostrum not strongly denticulate laterally, having 6–7 regular marginal teeth on mid-margin ( Fig. 20J )............................................................................................... J. deltoides ( Barnard, 1914)

5. Rostrum sub-triangular ending in rounded tip ( Fig. 20K )................................... J. thomassini Guţu, 1989

- Rostrum spatulate ( Fig. 20L–M )......................................................................... 6

6. Rostrum with 8–20 long marginal plumose setae ( Fig. 20L ). Pereopod-1 with subacute coxal process armed with 5–6 translucent acute or subacute apophyses and 4–5 plumose setae ( Fig. 20N )......................... J. gutui Ritger & Heard, 2007

- Rostrum lacking long marginal plumose setae ( Fig. 20M ). Pereopod-1 with acute coxal process armed with 4–5 denticles and 3–4 plumose setae ( Fig. 20O )............................................................ J. magdae sp. nov.

Figures

FIGURE 20. Antenna: A, Richardjulmaia bajau; B, Julmarichardia sp. A; C, J. alinati; D, J. deltoides; E, J. thomassini: F, J. gutui; G, J. magdae sp. nov. Rostrum: H, J. sp.A; I, J. alinati; J, J. deltoides; K, J. thomassini: L, J. gutui; M, J. magdae sp. nov. Pereopod-1: N, J. gutui; O, J. magdae sp. nov. [Figures modified from: A, Bamber & Sheader (2005); B, G–H, M–O, Morales & Heard (this study); C, E, I, K, Guţu (1989a); D, J, Barnard (1914); F, L, Ritger & Heard (2007)]. Not to scale.