Pericelis sigmeri, Ramos-Sánchez & Bahia & Bastida-Zavala, 2020

Ramos-Sánchez, Mariela, Bahia, Juliana & Bastida-Zavala, J. Rolando, 2020, Five new species of cotylean flatworms (Platyhelminthes: Polycladida: Cotylea) from Oaxaca, southern Mexican Pacific, Zootaxa 4819 (1), pp. 49-83 : 57

Pericelis sigmeri sp. nov.

( Figures 5 A–J, 6A–C, 7A–F)

urn:lsid:zoobank.org:act:8195DEB1-1EB1-497C-AED7-02BC20272059

Type locality. Cacaluta Bay , Oaxaca, México (15°43’12.08”N, 96°9’49.08”W) .

Type material. Seven specimens. Holotype : as sagittal sections: UMAR PLAT-025 (reproductive structures in six slides; Cacaluta Bay, Oaxaca, southern Mexican Pacific ; under rocks, 10 m, May 7, 2013, coll. MRS). Paratypes : Six specimens as whole mounts: UMAR PLAT-026 A-C, 4 specs. (Cacaluta Bay, same as holotype); UMAR PLAT-027 , 1 spec. (Panteón Beach, under rocks, 3 m, Dec 6, 2013, coll. MRS) . One specimen preserved in 70% ethanol: UMAR PLAT-026 D, 1 spec. (Cacaluta Bay, same as holotype) .

Figures

FIGURE 5. Pericelis sigmeri sp. nov. A, C–D, F–J (paratype UMAR PLAT-026); B–E (paratype UMAR PLAT-027). A–B. Specimen in vivo; C. Specimen preserved in alcohol; D, F–J. Specimen stained in Gomori ´s trichromic and cleared in methyl salicylate; E, G. Anterior region of the body; F, J. Male and female reproductive systems; H. Brain; I. Pharynx region, in whole mount. Structures: ce= cerebral eyes, gcm= globuli cell masses, me= marginal eyes, p= pharynx, pe= pre-cerebral eyes, pp= penis papilla, pt= pseudotentacles, sv= seminal vesicle, ud= uterine ducts, uv= uterine vesicle. Scaling bar of the figure A-B = 5 mm.