Latin austellus meaning south, refers to the southern region of the Gulf of Mexico [details]
Latin crassum, thick, refers to the thickness of the first pairs of branchiae. [details]
In memory of the author's son, Jonatán Iván Delgado Martinez (1993–2014). [details]
from the Greek oligo meaning few and refers to the few pinnules distributed scarcely on the branchiae. [details]
Latin rotundus, rounded, in reference to the anteriorly rounded prostomium. [details]
Off Alacranes Island, Yucatan, Gulf of Mexico, 22 26' N, 90 27' W (22.4333, -90.45) 91 m [details]
Off the coast of Coatzacoalcos, Veracruz, Gulf of Mexico, 18 44' N 94 41.9' W, 173 m [details]
Off the coast of La Venta, Tabasco, Gulf of Mexico, 18 39.8' N, 94 13.1' W (18.6633, -94.2183), 147 m [details]
Dinamo I, off Campeche, Gulf of Mexico, 20 14' N, 91 05'W (20.2333, -91.08333), 17 m [details]
Mahahual, Quintana Roo, Mexico, no geocoordinates provided, estimated 18.7136, -87.7086 [details]