Castellanethes ougougensis Moutaouakil & Boulanouar, 2023

Moutaouakil, Soumia, Boulanouar, Mohamed, Ghamizi, Mohamed, Lips, Josiane & Ferreira, Rodrigo Lopes, 2023, Two new sympatric cave species of Castellanethes (Isopoda, Oniscidea, Olibrinidae) from Western High Atlas of Morocco, Subterranean Biology 45, pp. 17-37 : 17

publication ID	https://dx.doi.org/10.3897/subtbiol.45.95845
publication LSID	lsid:zoobank.org:pub:2914532A-9A22-4756-98F3-7D885262AA44
persistent identifier	https://treatment.plazi.org/id/B2EE7107-4D7B-46C2-99C5-1668C3688183
taxon LSID	lsid:zoobank.org:act:B2EE7107-4D7B-46C2-99C5-1668C3688183
treatment provided by	Subterranean Biology by Pensoft
scientific name	Castellanethes ougougensis Moutaouakil & Boulanouar
status	sp. nov.

Treatment

Castellanethes ougougensis Moutaouakil & Boulanouar sp. nov.

Figs 2 View Figure 2 , 3 View Figure 3 , 4 View Figure 4 , 8B, E View Figure 8 , 9C, D View Figure 9 , 10B, E, H View Figure 10 , 11D-F View Figure 11 , 12H View Figure 12

Material examined.

Holotype: Morocco • 1 ♂ (mounted on a slide), Agadir-Imi Ougoug Cave , alt. 773 m, 29 Dec 2019, Moutaouakil S. leg. MHNM ZAI01 . Paratypes: Morocco • 2 ♀, Imi Ougoug Cave , 26 Feb 2020, Moutaouakil S. leg., MHNM ZAI03 and MHNM ZAI04 • 1 ♂, Ifri N'Tyaline Cave , 27 Oct 2019, Lips J. leg., MHNM ZAI05 • 1 ♂, Win Timdouine Cave , 31 Oct 2019, Moutaouakil S. leg., ZAI06 • 1 ♂, Taghrart Ounakrim Cave , 04 Nov 2019, Moutaouakil S. leg., MHNM ZAI07 • 1 ♂, Tigmi N'Dou Akkal Cave , 25 Feb 2020, Moutaouakil S. leg., MHNM ZAI08 .

Diagnosis.

Telson with double-rounded tips. Antennula with eight petaliform aesthetascs. Antennal flagellum with six articles. Molar penicil of mandible with two plumose setae. Male pleopod 1 endopod with four wide scales at apex inner margin. Male pleopod 2 endopod thick and about 1.5 × as long as exopod.

Description.

Maximum body length: ♂ 5 mm, ♀ 6 mm. Body outline as in Fig. 2A View Figure 2 . Colourless, dorsal surface tuberculate with tubercles arranged as follows: cephalon with four rows of tubercles; pereonite 1 with three rows of tubercles; pereonites 2-7 with two rows; pleonites 1 and 2 with one row of tubercles each, pleonites 3-5 and telson smooth, the latter about four times wider than long (Fig. 10B View Figure 10 ). Pleon narrower than pereon. Antennula with three articles (Fig. 8E View Figure 8 ), second article with one row of short setae on outer margin, third article with one row of eight petaliform aesthetascs along outer margin. Antenna long and slender (Fig. 8B View Figure 8 ), flagellum of six articles. Mandible with molar penicil consisting of two branches (Fig. 9C, D View Figure 9 ), basal one more than twice as long as the other; left mandible with 2+1 penicils, right with 1+1 penicils. Maxillula (Fig. 2B, C View Figure 2 ) outer endite with 12 simple teeth and one long seta, inner branch without setae, penicils or spines. Maxilla (Fig. 2D View Figure 2 ) rounded and covered with thin setae and one row of thick setae. Maxilliped (Fig. 2E View Figure 2 ) endite with long apical penicil; epipodite bearing fringe of thin setae on outer margin. Pereopods with long plumose dactylar seta (Fig. 3A-G View Figure 3 ). Uropods (Fig. 10B View Figure 10 ) with protopod slightly longer than wide; exopod bearing one row of scales on inner margin; endopod wider and longer than exopod.

Male. Pleopod 1 (Figs 4A View Figure 4 , 10E View Figure 10 ) endopod with distal part pointed bent inwards, bearing four large transversal scales on the inner side; exopod triangular with no scale-setae (Fig. 4B View Figure 4 ). Pleopod 2 (Figs 4C View Figure 4 , 10H View Figure 10 ) endopod thick and about 1/5 as long as exopod; exopod with one to two setae on apex (Fig. 4D View Figure 4 ).