Parastacus promatensis Fontoura & Conter, 2008

Ribeiro, Felipe Bezerra & Araujo, Paula Beatriz, 2024, Taxonomic review of the genus Parastacus Huxley, 1879 (Decapoda: Astacidea: Parastacidae) with description of five new species, Zootaxa 5455 (1), pp. 1-84 : 41-44

publication ID

https://doi.org/ 10.11646/zootaxa.5455.1.1

publication LSID

lsid:zoobank.org:pub:08C2F841-1BF8-492D-A6DE-788CC5595E03

persistent identifier

https://treatment.plazi.org/id/E0222776-BE78-606A-FF1B-FEE4F43FFB2C

treatment provided by

Plazi

scientific name

Parastacus promatensis Fontoura & Conter, 2008
status

 

Parastacus promatensis Fontoura & Conter, 2008 View in CoL

( Figs. 23–24 View FIGURE 23 View FIGURE 24 )

Parastacus brasiliensis promatensis Fontoura & Conter, 2008: 29 View in CoL View Cited Treatment , fig. 1.—­ De los Ríos-Escalante et al. 2022: 1129 (appendix),

fig. 1a. Parastacus brasiliensis pomatensis View in CoL .—­ Crandall & De Grave 2017:641. [erroneous spelling]. Parastacus promatensis View in CoL .—­ Miranda et al. 2018: 1272, fig. 4.—­ Rogers et al. 2020: 879 (key), fig. 23.71A.—­ Huber et al. 2022:

276 (key).—­ Huber et al. 2024: 14 (key).

Type locality. São Francisco de Paula , state of Rio Grande do Sul, Brazil .

Type material re-examined. Holotype: male, Brazil, Rio Grande do Sul, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 25/II/1997 ( MCTP 2085 ) ; Paratypes: six males and two females, same data as holotype ( MCTP 2086 ) .

Material examined. Brazil, Rio Grande do Sul: one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006, coll. L. C. C. Daudt ( UFRGS 4160 View Materials ) ; two females and 1 male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS) (29°29’21.99”S 50°13’3.972”), 2014 ( UFRGS 5949 View Materials ) ; two female and two males, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 05/IV/1995, coll. N. Fontoura ( UFRGS 2110 View Materials ) ; one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 08/VII/2005, coll. L.C.C. Daudt ( UFRGS 4156 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L. C. C. Daudt ( UFRGS 4148 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L.C.C. Daudt ( UFRGS 4159 View Materials ) ; one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006, coll. L.C.C. Daudt ( UFRGS 4157 View Materials ) ; one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L.C.C. Daudt ( UFRGS 4155 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L. C. C. Daudt ( UFRGS 4153 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L.C.C. Daudt ( UFRGS 4150 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L.C.C. Daudt ( UFRGS 4152 View Materials ) ; one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L.C.C. Daudt ( UFRGS 4149 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L.C.C. Daudt ( UFRGS 4151 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L.C.C. Daudt ( UFRGS 4154 View Materials ) ; one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005, coll. L.C.C. Daudt ( UFRGS 4158 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006, coll. L.C.C. Daudt ( UFRGS 4161 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006, coll. L. C. C. Daudt ( UFRGS 4162 View Materials ) ; one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006, coll. L.C.C. Daudt ( UFRGS 4163 View Materials ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006, coll. L.C.C. Daudt ( UFRGS 4164 View Materials ) ; five females and four male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), X/2012, coll. G.T. Oliveira ( UFRGS 6151 View Materials ) ; one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005 ( MCTP 2639 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005 ( MCTP 2640 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005 ( MCTP 2641 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005 ( MCTP 2642 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/ VII/2005 ( MCTP 2643 ) ; one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 09/VII/2005 ( MCTP 2644 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2645 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2646 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2647 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2648 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2649 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2650 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2651 ) one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2652 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 15/I/2006 ( MCTP 2653 ) ; one male, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 22/V/2006 ( MCTP 2654 ) ; four males and one female, São Francisco de Paula, Riacho Garapiá, CPCN Pró-Mata (PUCRS), 21/IX/2009 ( MCTP 2981 ) .

Diagnosis and Description. Fontoura & Conter (2008).

Remarks. This species was first described as a subspecies of P. brasiliensis based mainly on a morphometric analysis of individuals previously identified as P. brasiliensis from the locality of São Francisco de Paula, Rio Grande do Sul, Brazil. However, Miranda et al. (2018) elevated this taxon to the species level based on genetic, morphological, and distribution analysis. However, recent articles erroneously place this taxon at subspecies level (De los Ríos-Escalante et al. 2022). Additional morphological characters not mentioned in previous descriptions include: eyes small ( Fig. 23A, B, C View FIGURE 23 ); front narrow ( Fig. 23A, B View FIGURE 23 ); epistome anterolateral section with a blunt conical projection and tubercles ( Fig. 24A View FIGURE 24 ); antennal scale lateral margin straight ( Fig. 24D View FIGURE 24 ); antennule internal ventral border of basal article without one sharp spine ( Fig. 24A View FIGURE 24 ); mandible with cephalic molar process molariform and caudal molar process bicuspidate, incisor lobe with nine teeth; the third tooth from the anterior are the largest ( Fig. 24E View FIGURE 24 ); SLP4 smallest and close to each other, medial keel present and not inflated; SLP5 close to each other, median keel present and not inflated; SLP6 larger than SLP4 and SLP5 with slightly concave dorsal surface, medial keel present and slightly inflated; SLP7 largest and with slightly concave surface, median keel present and inflated; SLP8 smaller than SLP 7, median keel absent, vertical arms of paired sternopleural bridges close to each, bullar lobes visible and widely separated ( Fig. 24B, C View FIGURE 24 ); male cuticle partition present. This species is morphologically similar to P. brasiliensis and P. fluviatilis in having the chelipeds long and laterally flattened, triangular rostrum and post orbital carinae prominent, but it can bedistinguishable by the longer dactyls of chelipeds and the entire lateral margin of chelipeds covered by verrucous tubercles irregularly distributed.

Distribution. Brazil, state of Rio Grande do Sul ( Fontoura & Conter 2008; Miranda et al. 2018).

Color of live specimens. Rostrum, cephalothorax anterior and lateral regions, dorsal pleon, tailfan and pereiopods greenish brown or dark brown or black. Antennal flagellum light brown ( Miranda et al. 2018).

Habitat and Ecology. Streams at high altitudes (~ 850 m) ( Fontoura & Conter 2008). No data is available concerning burrow structure, but probably this species should be classified as a tertiary burrower according to the habitat where the specimens were collected ( Ribeiro et al. 2020).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Parastacidae

Genus

Parastacus

Loc

Parastacus promatensis Fontoura & Conter, 2008

Ribeiro, Felipe Bezerra & Araujo, Paula Beatriz 2024
2024
Loc

Parastacus brasiliensis promatensis

Rios-Escalante, P. R. & Jara-Seguel, P. & Contreras, A. & Latsague, M. & Lara, G. & Rudolph, E. & Crandall, K. A. 2022: 1129
Fontoura, N. & Conter, M. R. 2008: 29
2008
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