Onychopontia peteraxi, (Mielke, 1982 a), 2008

Sak, Serdar, Huys, Rony & Karaytuğ, Süphan, 2008, Disentangling the subgeneric division of Arenopontia Kunz, 1937: resurrection of Psammoleptastacus Pennak, 1942, re-examination of Neoleptastacus spinicaudatus Nicholls, 1945, and proposal of two new genera and a new generic classification (Copepoda, Harpacticoida, Arenopontiidae), Zoological Journal of the Linnean Society 152, pp. 409-458 : 449

ONYCHOPONTIA PETERAXI ( Mielke, 1982a)

COMB. NOV.

Arenopontia peteraxi Mielke, 1982a

Arenopontia (Arenopontia) peteraxi Mielke (1982a) : Bodin (1988)

Original description: Mielke (1982a): pp. 36–42; Abb. 22–24, 28 (distribution map).

Type locality: Ecuador, Galápagos, Jervis , north coast; sandy beach .

Remarks: The species has also been reported from three other islands of the Galápagos archipelago (Isabela, James, and Marchena) ( Mielke, 1982a), three localities along the Pacific seaboard of Panamá ( Isla Taboga, Playa Nueva Gorgona, and Playa Lagomar) ( Mielke, 1982b), Arica in northern Chile ( Mielke, 1987), and Isla Margarita in Venezuela ( Martínez Arbizu & Moura, 1994). Variability in the number of elements (either one or two) on P2 enp-2 and P3 enp-2 was recorded in the Panamá and Galápagos populations, respectively. Additional variability can be noted in the length of the caudal ramus spinous process, and the robustness of the spinules on the anal operculum. Mielke (1982b) also reported one individual with an outer spine on P1 exp-2 (atavism!); some Galápagos specimens were found in copula. Mielke’s (1982a) claim that there is a short outer basal seta on P1 is probably false.