Dugastella valentina (Ferrer Galdiano, 1924)

Rodríguez, Antonio & Cuesta, José A., 2011, Morphology of larval and first juvenile stages of the kangaroo shrimp Dugastella valentina (Crustacea, Decapoda, Caridea), a freshwater atyid with abbreviated development and parental care, Zootaxa 2867 (1), pp. 43-58 : 44-45

publication ID	https://doi.org/ 10.11646/zootaxa.2867.1.3
DOI	https://doi.org/10.5281/zenodo.5293028
persistent identifier	https://treatment.plazi.org/id/039E8F42-FFAD-5312-FF4B-FBBB87C4FDF5
treatment provided by	Felipe
scientific name	Dugastella valentina
status

Treatment

Dugastella valentina View in CoL

Zoea I

Duration of stage: 1–2 days

Size: tl= 2.45 ± 0.05 mm; cl = 0.80 ± 0.02 mm; cw= 0.69 ± 0.05 mm.

Carapace ( Figs. 1A, D View FIGURE 1 ). Rostrum triangular, very short, acute straight and directed somewhat downwards. Eyes large and sessile.

Antennule ( Fig. 2A View FIGURE 2 ). Peduncle 3-segmented with a long plumose seta on distal segment. Endopod absent. Exopod unsegmented, broad, with 3 terminal aesthetacs and 2 setae.

Antenna ( Fig. 2D View FIGURE 2 ). Protopod unsegmented. Endopod long 5-segmented and without setae. Exopod with 11 plumose setae on distal margin.

Mandible ( Fig. 3A View FIGURE 3 ). Molar process with 6–8 marginal teeth, lacinia mobilis as 1 curved spine. Incisor process with 3 small teeth.

Maxillule ( Fig. 3D View FIGURE 3 ). Coxal endite with 5 spines (processes). Basal endite with 3 subterminal, and 5–6 terminal spines (processes). Endopod with 2 terminal and 1 subterminal setae.

Maxilla ( Fig. 3G View FIGURE 3 ). Coxal endite bilobed, proximal lobe with 10–11 setae, distal lobe with 1 terminal and 2 subterminal plumose setae. Basal endite bilobed, both with 1 terminal and 1 subterminal setae. Endopod with 1 terminal and 1 subterminal setae. Exopod (scaphognatite) with 10 plumose setae on anterior and lateral margin and a long distal stout setose process.

First Maxilliped ( Fig. 4A View FIGURE 4 ). Biramous. Coxa with 3 setae, 2 simple and 1 plumose. Basis with 4–5 small terminal simple setae. Endopod 4-segmented with 0, 1, 0, 5 setae respectively. Setae plumose on distal segment. The exopod is longer than the endopod with 4 long terminal and 2 short subterminal plumose setae.

Second Maxilliped ( Fig. 4D View FIGURE 4 ). Biramous. Coxa with 2 simple setae. Basis with 2 sparsely setose setae. Endopod 5-segmented longer that the exopod, isquium and merus both with 1 simple seta, carpus without setae, propodus with 2 distal simple setae and dactylus with a long spinulated and serrate seta, and 1 subterminal and 2 terminal setae. Exopod with 4 long terminal and 2 short subterminal plumose setae.

Third Maxilliped ( Fig. 4G View FIGURE 4 ). Biramous. Coxa with a elongated bud (epipodite). Basis with 1 simple seta. Endopod 5-segmented longer that the exopod, isquium with 1 simple seta, merus and carpus without setae, propodus with 2 distal simple setae and dactylus with a long spinulated and serrate seta, and 1 subterminal and 2 terminal setae. Exopod with 4 long terminal and 2 short subterminal plumose setae.

Pereiopods ( Figs. 5A–E View FIGURE 5 ). Uniramous, well developed. Cheliped and second pereiopod slightly segmented and pereiopods third to fifth clearly segmented. Elongated buds (epipodite) on coxa. Terminal segment of cheliped and second pereiopod slightly quelated.

Abdomen ( Figs. 1A, D View FIGURE 1 ). Six-segmented, distal segment fused with telson.

Pleopods ( Fig. 6D View FIGURE 6 ). Biramous. On abdominal segments 1 to 5; exopod and endopod as well developed buds.

Telson ( Fig.6A View FIGURE 6 ). Diverging posteriorly, indented at median line on posterior margin. Bearing 2 pair of simple setae on lateral margin, 7+7 plumose setae on posterolateral and posterior margin (2 innermost pair smaller), and 2 pair of simple setae on postero-dorsal margin.