Figure 1.
Localities in which the Austinixa species indicated in this study have been collected. Austinixa marianae sp. nov. = dark triangle, A. roblesi (according to Palacios Theil and Felder (2020aPalacios Theil, E. and Felder D.L. 2020a. Phylogeny of the genus Austinixa Heard and Manning, 1997, inferred from mitochondrial and nuclear molecular markers, with descriptions of three new species and redescription of Austinixa felipensis (Glassell, 1935) (Decapoda: Brachyura: Pinnotheridae). Zootaxa, 4778: 101-134.)) = dark circles, and A. felipensis = squares. The dark squares correspond to the collection locations in this study, the empty squares indicate the localities of collection, according to Glassell (1935Glassell, S.A. 1935. Three new species of Pinnixa from the Gulf of California. Transactions of the San Diego Society of Natural History, 8: 13-14.), Bott (1955Bott, R. 1955. Litorale Dekapoden, ausser Uca. Dekapoden (Crustacea) aus El Salvador, 2. Senckenbergiana biologica, 36: 45-70.), and Palacios Theil and Felder (2020aPalacios Theil, E. and Felder D.L. 2020a. Phylogeny of the genus Austinixa Heard and Manning, 1997, inferred from mitochondrial and nuclear molecular markers, with descriptions of three new species and redescription of Austinixa felipensis (Glassell, 1935) (Decapoda: Brachyura: Pinnotheridae). Zootaxa, 4778: 101-134.). The numbers correspond to: 1, San Felipe, Baja California; 2, Santa María - La Reforma, coastal lagoon, Sinaloa; 3, Mazatlán, Sinaloa; 4, La Cruz de Huanacaxtle, Nayarit; 5, Bahía Chamela, Jalisco; 6, Coral de Mulas and La Chepona, El Salvador; 7, Las Enramadas, Nicaragua; 8, Dangriga, Belize; 9, Bocas del Toro, Panama; 10, Isla Grande, Panama.
Figure 3.
Austinixa marianae n. sp. A, C-G, J-L, male paratype (ICML-EMU 12531); B, H-I, female paratype (ICML-EMU 12531). Austinixa roblesi Palacios Theil and Felder, 2020aPalacios Theil, E. and Felder D.L. 2020a. Phylogeny of the genus Austinixa Heard and Manning, 1997, inferred from mitochondrial and nuclear molecular markers, with descriptions of three new species and redescription of Austinixa felipensis (Glassell, 1935) (Decapoda: Brachyura: Pinnotheridae). Zootaxa, 4778: 101-134., M-P. A, Male carapace, dorsal view; B, female carapace, dorsal view; C, third maxilliped, external view; D, carapace frontal region, anterior view; E, pleon; F, male right cheliped, external view; G, male left cheliped, external view; H, female right cheliped, external view; I, female left cheliped, external view; J, male, first gonopod, in toto; K, male, first gonopod, distal portion (setae omitted); L, male second gonopod; M, right chela, internal; N, left first gonopod tip, pleonal surface; O, left first gonopod tip, sternal surface; P, male pleon. Scale bar = 1 mm, except C = 0.2 mm. (M-P redrawn from Palacios Theil and Felder, 2020aPalacios Theil, E. and Felder D.L. 2020a. Phylogeny of the genus Austinixa Heard and Manning, 1997, inferred from mitochondrial and nuclear molecular markers, with descriptions of three new species and redescription of Austinixa felipensis (Glassell, 1935) (Decapoda: Brachyura: Pinnotheridae). Zootaxa, 4778: 101-134.)
Figure 4.
Austinixa marianae n. sp. A-G, male paratype (ICML-EMU 12531); H, female paratype (ICML-EMU 12531). A, Second pereopod, dorsal view; B, third pereopod, dorsal view; C, fourth pereopod, dorsal view; D, fourth pereopod anterior view; E, fifth pereopod, dorsal view; F, dactylus of fourth pereopod, dorsal view; G, dactylus of fifth pereopod, dorsal view; H, ovigerous female pleon. Scale bar = 1 mm.
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