Phaenocelis medvedica Marcus, 1952

Cuadrado, Daniel, Hernández-Gonzalez, Alejandro, Noreña, Carolina & Simões, Nuno, 2024, Polyclads (Platyhelminthes) in the southern Gulf of Mexico: unveiling biodiversity and descriptions of two new species, ZooKeys 1221, pp. 103-144 : 103-144

publication ID

https://doi.org/ 10.3897/zookeys.1221.128260

publication LSID

lsid:zoobank.org:pub:EE34B942-57D8-456C-A6D5-F8046BB3A71E

persistent identifier

https://treatment.plazi.org/id/0771719D-9953-56EB-9EEB-3D052ABDE0A9

treatment provided by

ZooKeys by Pensoft

scientific name

Phaenocelis medvedica Marcus, 1952
status

 

Phaenocelis medvedica Marcus, 1952

Fig. 17 View Figure 17

Material examined.

Campeche coast, Mexico 1; Cayo Arcas; 20.2 ° N, 92.0 ° W; 6.2 m; 20 Aug. 2018; A. Hernández leg.; CRPPY - 0109 GoogleMaps 1; Cayo Arcas; 20.2 ° N, 92.0 ° W; 3.3 m; 20 Aug. 2018; A. Hernández leg.; CRPPY - 0112 GoogleMaps .

Distribution.

Phaenocelis medvedica was recorded in Brazil ( Marcus 1952; Bahia et al. 2015; Bahia and Schrödl 2018); Caribbean coast of Colombia ( Quiroga et al. 2004 a, 2004 b). New record for the Campeche coast and Gulf of Mexico.

Description.

Body shape elongated with rounded anterior end and pointed posterior end, 0.45 cm in length and 0.2 cm in width. Translucent pinkish colouration, including two longitudinal dark brown rows parallel to the main body’s axis (Fig. 17 A View Figure 17 ). Two elongated clusters of cerebral eyes and two small groups of tentacular eyes sparsely distributed. Small marginal eyes along the entire body margin. (Fig. 17 B View Figure 17 ). Pharynx central, occupies 1 / 3 of the body size. Male and female reproductive organs located in the second 1 / 2 of the body with the morphological features of P. medvedica . Reproductive system. The male reproductive system consists of a large and muscular interpolated prostatic vesicle, a slightly muscular seminal vesicle, and a large, coiled cirrus. Female copulatory organ with a bulbous vagina and large Lang’s vesicle (Fig. 17 C, D View Figure 17 ).