Vol. 57, 2018
(update: 2018.08.31; 09.27)
Neotype Designation for the Marine
Flatworm, Acanthozoon alderi
(Polycladida: Cotylea: Pseudocerotidae), from India with Comments on
the Taxonomical Status of the Genus
Dixit1, Veronica N. Bulnes2,*, and Chelladurai
for Marine Living Resources and Ecology, Kochi, India. E-mail:
2Laboratorio de Zoología de Invertebrados I.
INBIOSUR-CONICET-UNS. San Juan 670. 8000 Bahía Blanca. Buenos Aires.
3Zoological Survey of India, M - Block, Alipore,
Kolkata, India. E-mail: firstname.lastname@example.org
(Received 16 April 2018; Accepted 16 August
2018; Communicated by Benny K.K. Chan)
Dixit, Veronica N. Bulnes, and Chelladurai Raghunathan (2018) Acanthozoon alderi
is an ovoid, medium-sized pseudocerotid. Body margin ruffled;
pseudotentacles black and pointed, with white tips. Dorsal surface
covered with papillae, except for the cerebral region. Background
colour light brown, with marbled blackish pattern, middorsal black band
with white blotches; black submarginal band and marginal white rim.
This species was described from Borneo; however, no type specimen was
designated or deposited in any museum by the author. Many nomenclature
problems and misidentification have been encountered with this species
(it has been identified as Acanthozoon
sp. in many instances). Thus, it is necessary to designate a neotype to
solve the problems of doubtful and confusing identities and maintain
nomenclature stability. The present paper details internal anatomy for
the first time and makes important observations about the nominal
status of the genus.
Key words: Marine flatworms, Andaman and
Nicobar Islands, Cotylea, Thysanozoon,
*Correspondence: E-mail email@example.com