Bivesiculoplana lamothei Pineda-López & González-Bulnes, 1984

Bivesiculoplana lamothei Pineda-López & González-Bulnes, 1984: 27–29, figs 2–8 (type locality: Chamela Bay, Jalisco, Mexico).

Bivesiculoplana lamothei – Lamothe-Argumedo et al. 1997: 15 (checklist). — Ramos-Sánchez et al. 2019: 43–48, figs 7a–k, 8a–d, 9a–i (description and new record from Agua Blanca, El Aguete, Puerto Ángel, Boca Vieja, Coyula, Oaxaca, Mexico).

Distribution

Punta Pérula Beach, Las Rosadas, El Negrito, La Manzanillas, Jalisco; Azul Beach, Michoacán; La Ropa Beach, La Barrita, Guerrero; El Carrizalillo Beach, Agua Blanca, El Aguete, Puerto Ángel, Boca Vieja, Coyula, Oaxaca, Mexico.

Habitat

Ectocomensal (mantle cavity of Fissurella gemmata Menke, 1847, F. decemcostata J.H. McLean, 1970, Lottia pediculus (R.A. Philippi, 1846), L. discors (R.A. Philippi, 1849), Siphonaria G.B. Sowerby I, 1823 and Ancistromesus mexicanus (Broderip & G.B. Sowerby I, 1829)) .

Remarks

Bivesiculoplana lamothei is a Leptoplanidae ectocomensal of gastropods, characterized by an oval body with a granular dorsal surface (subepidermal), digitiform or circular nuchal tentacles, cerebral and tentacular eyes lack of marginal eyes, and an elongate and sparsely branched pharynx. Gonopores are separate; the male reproductive system features an oval sparsely muscled seminal vesicle, and a sclerotized filiform stipe; the female reproductive tract features paired fusiform Lang’s vesicles and a heavily muscled vagina.