Tehuana chontalpaensis Villalobos & Alvarez, 2003

Moreno-Juarez, Eric G., Villalobos, Jose Luis & Alvarez, Fernando, 2022, Revision of the freshwater crabs of the genus Tehuana Rodriguez & Smalley in Smalley 1970 (Decapoda, Pseudothelphusidae), with the descriptions of two new species, ZooKeys 1117, pp. 1-35 : 1

Tehuana chontalpaensis Villalobos & Alvarez, 2003

Figs 8B , 9B

Tehuana chontalpaensis Villalobos & Alvarez, 2003: 224, 228 (in key), figs 2, 4A.- Álvarez et al. 2005: 191.- Rodríguez and Magalhães 2005: 356, tab. 1 (list).- Villalobos Hiriart and Álvarez 2008: 280, 298 (list).- Ng et al. 2008: 177 (list).-Villalobos and Alvarez 2010: 474, 477, fig. 11 (map).- Alvarez and Villalobos 2016: 254, tab.8.1 (list).- Villalobos-Hiriart et al. 2019: 156, tab.1 (list).- Álvarez et al. 2020: 979, tab. 1 (list).

Material examined.

Mexico - Tabasco • 1 ♂, holotype; LC 35.1 mm, AC 57.3 mm; Municipality of Huimanguillo, Carlos A. Madrazo , Pueblo Viejo Stream ; 17°23'45"N, 93°39'45"W; alt. 135 m; 8 May 1997; J.L. Villalobos leg.; CNCR 18952 . 2 ♂, paratypes; LC 17.3-24.3 mm, AC 27.7-37.8 mm; same data as for holotype; 12 Jun. 1997; J.L. Villalobos, R. Robles leg.; CNCR 17093 . 1 ♂, 1 ♀, paratypes; LC 11.0- 14.8 mm, AC 17.0-23.0 mm; same collection data as for holotype; 12 Jun. 1997; J.L. Villalobos, R. Robles leg.; CNCR 17171 . 1 ♂, 2 ♀; LC 10.0-22.0 mm, AC 14.2-34.0 mm; Municipality of Huimanguillo, 3 km E of Carlos A. Madrazo, small tributary of Pedregal-Tonala River ; 17°23'52"N, 93°40'51"W; alt. 116 m; 22 Jan. 1998; J.L. Villalobos, R. Robles leg.; CNCR 17290 . Chiapas 1 ♂; LC 25 mm, AC 42 mm; Municipality of Ocozocoautla, Reserva de la Biósfera Selva el Ocote , Cerro Cola de Sapo , Frio Stream ; 18 Dic 2008; A. García and M. Anzueto leg.; CNCR 25445 .

Diagnosis.

As in Villalobos and Alvarez (2003).

Distribution.

Only known from the type locality and surroundings (Fig. 1 ).

Remarks.

As noted by Villalobos and Alvarez (2003) Tehuana chontalpaensis is morphologically similar to T. lamothei , a similarity that is consistent with their being sister species as shown in the molecular phylogeny (Fig. 3 ).

Figures

Figure 1. Distribution of the species of the genus Tehuana in southeastern Mexico.

Figure 3. Phylogenetic tree obtained for the genus Tehuana based on the concatenated analysis of three genes (H 3, 16 S, COI), using maximum likelihood and Bayesian inference. Branch supports values are posterior probability / bootstrap. Only clades with branch support above 50 % indicated. Clades a, b, and c are labelled for discussion purposes.

Figure 8. Mesial view of the apical portion of the G 1 of the species of Tehuana A T. ayotzintepecensis sp. nov., CNCR 34628 B T. chontalpaensis, CNCR 17093 C T. col sp. nov., CNCR 33928 D T. complanata, CNCR 11957 E T. diabolis, CNCR 12056 F T. lamellifrons, CNCR 33939 G T. lamothei, CNCR 8812 H T. jacatepecensis, CNCR 11920 I T. poglayenorum, CNCR 33931 J T. veracruzana, CNCR 33934. Scale bars: 1 mm.

Figure 9. Cephalic view of the apical portion of the G 1 of the species of Tehuana A T. ayotzintepecensis sp. nov., CNCR 34628 B T. chontalpaensis, CNCR 17093 C T. col sp. nov., CNCR 33928 D T. complanata, CNCR 11957 E T. diabolis, CNCR 12056 F T. lamellifrons, CNCR 33939 G T. lamothei, CNCR 8812 H T. jacatepecensis, CNCR 11920 I T. poglayenorum, CNCR 33931 J T. veracruzana, CNCR 33934. Scale bars: 1 mm (A, C, H, J); 0.5 mm (B, D, E, F, G, I).