Pseudoprellicana johnsoni Guerra-Garcia 2006
Creators: name: Guerra-García, José M.
name: Lowry, J. K.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Caprellidae
Pseudoprellicana
Pseudoprellicana johnsoni

description: Pseudoprellicana johnsoni Guerra-García, 2006   
(Fig. 14)  
 Pseudoprellicana johnsoni Guerra-García, 2006: 434, figs 29–32.   
 Material examined. Holotype male, 2.8 mm, AM P61737 (QLD 27). Paratype: 1 female, AM P61738 (QLD 29).   
 Type locality. Between Bird Islet & South Island, Lizard Island, Queensland, Australia (14º40’S 145ºE), sediment at reef base with mixed algae, 25 m depth (QLD 27).   
 Description. Based on holotype male, 2.8 mm and paratype female, 2.7 mm.   
 Head and pereonites slender. Head/pereonite 1 fused (suture absent); slightly concave along dorsal margin or dorsal margin straight; eye large, distinctive. Antenna 1 well developed; slender, 0.33 x body length; peduncle articles 2 and 3 subequal in length, article 3 straight; accessory flagellum absent; flagellum 0.4 x peduncular length, with more than 2 articles. Antenna 2 0.5 x antenna 1 length, slender; peduncle without setae; flagellum about 1/4 (0.25 x) of peduncular length, with 2 articles. Labrum weakly notched, forming rounded quadrilateral projections. Mandible right incisor with 5 teeth, right lacinia mobilis coarsely toothed followed by 2 plates; accessory setal row with 5 setae; molar absent; left incisor with 5 teeth, lacinia mobilis with 5 teeth, with 5–6 trapezoid plates decreasing in size; palp 3–articulate, palp setal formula with 1 to 4 large distal setae. Maxilla 1 outer plate with 6 stout apical setal-teeth. Maxilliped inner plate larger than outer plate, subrectangular; outer plate 1/2 (0.5 x) length of inner plate; palp article 2 scarcely setose on inner margin; palp article 4 not enlarged, weakly falcate.   
 Pereon. Pereonites 2 to 7 not fused; pereonite 5 longest. Pereonite 1 without projections. Gnathopod 1 distinctly smaller than gnathopod 2; propodus subtriangular, palm begins 2/5 along posterior margin, smooth, without large, rounded knob proximally; dactylus curved, inner margin smooth. Pereonite 2 without projections. Gnathopod 2 situated toward anterior end or near middle of pereonite 2; basis subequal in length to pereonite 2, without anterodistal projection; ischium without anterodistal projection; propodus subovate or elongate, large, anterodistal margin slightly convex, without anterodistal triangular projection, without projections along mid-anterior margin; palm without proximal cavity filled with membranous sack, palm proximal projection with 3 robust (grasping) setae, palm margin convex, smooth, without hook-like projection at base of dactylus, without distal shelf, without sinus, without midpalmar projection. Pereonite 3 without projections. Pereopod 3 absent. Pereonite 4 without projections. Pereopod 4 absent. Pereopod 5 reduced or vestigial, with 3 articles, slender. Pereopods 6 and 7 simple.   
 Gills on pereonites 3 and 4. Pereonite 3 gill length less than 1/4 of corresponding pereonite, straight, ovate. Pereonite 4 gill length about 1/6 of corresponding pereonite, straight, ovate.   
 Pleon. Uropod 1 present. Uropod 2 ramus well developed.   
 Female (sexually dimorphic characters). Head/pereonite 1 dorsal margin straight. Antenna 2 0.6 x antenna 1 length. Gnathopod 2 situated near anterior end of pereonite 2. Pereopods 6 and 7 present. Pereopod 6 basis and propodus subequal in length; propodus without trapezoid comb on distal part of palm; dactylus curved, dactylus not setose. Pereopod 7 similar to pereopod 6; merus shorter than basis; dactylus with plumose seta distally.   
 Habitat. Sediment at reef base with mixed algae, 25 m depth.   
 Remarks. The genus Pseudoprotella was established by Guerra-García (2006). The closest genera are Prellicana and Jigurru (see details in Guerra-García 2006)   
 Distribution. Australia: Queensland: between Bird Islet and South Island, Lizard Island (Guerra-García 2006).
description: Published as part of Guerra-García, José M. & Lowry, J. K., 2009, Caprellidae *, pp. 290-327 in Zootaxa 2260 (1) on pages 317-319, DOI: 10.11646/zootaxa.2260.1.12, http://zenodo.org/record/5320964