Austinixa patagoniensis (Rathbun, 1918)

Pinnixa patagoniensis – Manning & Felder 1989: 20, Brazil Amapá [Cabo do Norte, 02°13′ N, 50°27′ W, from Coelho (1970) [see Remark sic; must be 1969] and Coelho & Ramos (1972) (23 m)].

non Pinnixa cristata Rathbun – Coelho 1969: tab. 1, Brazil Amapá. — Coelho & Ramos 1972: 196, Brazil Amapá [23 m]. — Barreto et al. 1993: table 1, Brazil Amapá. — Melo 1996: 431, Brazil Amapá; 1998: 493, Brazil Amapá. Following Manning & Felder (1989) these records must be corrected to Pinnixa patagoniensis Rathbun, 1918; see Remark.

Distribution/Habitat

WA (Brazil Amapá as northern limit); marine; 1– 130 m.

Remark

All previous references of Austinixa cristata (Rathbun, 1900) in Brazil Amapá are corrected herein to Austinixa patagoniensis (Rathbun, 1918) by following Manning & Felder (1989: 16, 20), with these comment and correction: “Coelho (1970 [sic, must be 1969] and Coelho & Ramos (1972) reported Pinnixa cristata from off Cabo de Norte, Brazil, on muddy bottom in 23 m. We tentatively identify their records with P. patagoniensis, as there are no other records of P. cristata from south or southeastern Florida. Pinnixa patagoniensis has been recorded from as deep as 130 m, whereas P. cristata appears to be restricted to intertidal and shallow subtidal habitats (2 m) … [its geographic distribution is limited to] … Atlantic coast of the southeastern United States, from at least Beaufort, North Carolina, to Miami, Florida; northern Gulf of Mexico, from Horn Island, Mississippi; and southwestern Gulf of Mexico, from Barra del Tordo, mouth of Rio Carrizal, Tamaulipas, Mexico ”. Austinixa patagoniensis has a disjunct geographic distribution in South America, from Cabo do Norte, State of Amapá, Brazil, southward to Golfo San Matias, Argentina.