Pseudoliomera speciosa (Dana, 1852)

Al-Haj, Ahmed E., Kumar, A. A. J., El-Sherbiny, Mohsen M., Al-Sofyani, Abdulmohsin, Crosby, Michael P. & Al-Aidaroos, Ali M., 2019, Descriptions of the first zoeas of ten xanthid crabs (Crustacea: Decapoda Xanthoidea) from the Gulf of Aqaba, Red Sea, Zootaxa 4686 (3), pp. 301-345 : 306

Pseudoliomera speciosa (Dana, 1852)

( Figs. 1–3 )

Zoea I. Size (mean ± sd): CW = 0.6 ± 0.02 mm; CL = 0.8 ± 0.01 mm; TT = 1.6 ± 0.03 mm.

Cephalothorax ( Fig. 1a ). Dorsal spine long, curved distally with many small spines; rostral spine straight, shorter than dorsal spine, longer than protopod of antenna, with many small spines on surface; lateral spines short with small spines on dorsal margin. Anterodorsal surface with many small spines, ventral margin without setae, one pair of posterodorsal setae; eyes sessile.

Antennule ( Fig 1b ). Uniramous, endopod absent, exopod unsegmented with 4 broad, long aesthetascs, one slen- der terminal seta.

Antenna ( Fig. 1c ). Protopodal process multispinulate, shorter than rostral spine, endopod bud present, exopod 20% length of protopod, 3 (2 terminal, 1 subterminal) setae.

Maxillule ( Fig 2a ). Coxal endite with 7 plumodenticulate setae; basial endite with 5 (3 cuspidate, 2 plumodenticulate) setae; endopod 2-segmented, proximal segment with one simple seta, distal segment with 2+4 setae; exopod setae absent.

Maxilla ( Fig. 2b ). Coxal endite bilobed with 4+4 plumodenticulate setae; basial endite with 5+4 setae; endopod unsegmented, bilobed with 3+5 plumodenticulate setae; exopod (scaphognathite) margin with 4 plumose setae, one stout distal process.

First maxilliped ( Fig. 2c ). Coxal endite with one seta; basial endite with 10 medial simple setae arranged 2+2+3+3; endopod 5-segmented with 3,2,1,2,1+4 setae respectively; exopod 2-segmented, distal segment with 4 terminal plumose natatory setae.

Second maxilliped ( Fig. 2d ). Coxal endite with one seta; basial endite with 4 medial simple setae arranged 1+1+1+1; endopod 3-segmented with 1,1, 1+4 setae. Exopod 2-segmented, distal segment with 4 terminal plumose natatory setae.

Pleon ( Fig. 3a ). Five somites; somite 2 with one pair of dorsolateral processes directed anteriorly; somite 3 with one pair of dorsolateral processes directed posteriorly; somites 1 and 2 with rounded posterolateral process; somites 3–5 with short posterolateral spinous processes; somite 1 without setae; somites 2–5 each with one pair of posterodorsal setae.

Telson ( Fig. 3b ). Each fork gradually curved distally with 2 lateral and 1 medial spines, anterolateral spine considerably longer; inner margin with 3 pairs of stout spinulate setae.

Figures

FIGURE 1. Pseudoliomera speciosa Dana, 1852, zoea I; a) anterior view of cephalothorax; b) antennule; c) antenna.

FIGURE 2. Pseudoliomera speciosa Dana, 1852, zoea I; a) maxillule; b) maxilla; c) first maxilliped; d) second maxilliped

FIGURE 3. Pseudoliomera speciosa Dana, 1852, zoea I; a) dorsal view of pleon; b) dorsal view of fork of telson.