Parastacus saffordi Faxon, 1898

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 : 30

publication ID

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

publication LSID

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

DOI

https://doi.org/10.5281/zenodo.11257700

persistent identifier

https://treatment.plazi.org/id/E0222776-BE4D-605C-FF1B-FF38F39DF899

treatment provided by

Plazi

scientific name

Parastacus saffordi Faxon, 1898
status

 

Parastacus saffordi Faxon, 1898 View in CoL

( Fig. 15–17 View FIGURE 15 View FIGURE 16 View FIGURE 17 )

Parastacus saffordi Faxon, 1898: 683 View in CoL , pl. 68. — Ortmann 1902: 293.—­ Riek, 1971:134.—­ Buckup and Rossi, 1980:673, figs. 9- 11.21.—­ Hobbs 1989: 80, fig. 368; 1991: 801, fig. 3b.—­ Crandall & De Grave, 2017: 641.—­ Rogers et al. 2020: 876 (key), fig. 23.62B, D.—­ Huber et al. 2022: 276 (key).—­ De los Ríos-Escalante et al. 2022: 1130 (appendix), fig. 1o.—­ Huber et al. 2024: 13 (key).

Type locality. Montevideo ( Uruguay) .

Type material re-examined. Holotype, ♂, Uruguay, Montevideo, mouth of La Plata, coll. W. E. Safford, U. S S. “Vandalia” ( USNM 12581 About USNM ) [Photos examined].

Material examined. Brazil, Santa Catarina: one male and one female, Cubatão river , 1960, coll. Rosenberger ( UFRGS 2705 View Materials ) ; one male, Siderópolis , 10/XII/2013, coll. C. Feltrin ( UFRGS 6918 View Materials ) ; one male, Siderópolis, Reserva do Aguaí , 2014, coll. C. Feltrin ( UFRGS 5862 View Materials ) ; two males and one sni, Siderópolis, Reserva do Aguaí , 2014, coll. C. Feltrin ( UFRGS 5863 View Materials ) ; two males, Siderópolis, Reserva do Aguaí , 2014, coll. C. Feltrin ( UFRGS 5864 View Materials ) ; one male, Siderópolis, Estrada para Jordão Baixo (28°35’31.18”S; 49°30’10.15”W), 10/XII/2013, coll. K.M. Gomes & F.B. Ribeiro ( UFRGS 5875 View Materials ) GoogleMaps ; one male, Siderópolis, Estrada para Jordão Baixo (28°35’31.18”S; 49°30’10.15”W), 10/XII/2013, coll. K.M. Gomes & F.B. Ribeiro ( UFRGS 5876 View Materials ) GoogleMaps ; one sni, Siderópolis, Estrada para Jordão Baixo (28°35’31.18”S; 49°30’10.15”W), 10/XII/2013, coll. K.M. Gomes & F.B. Ribeiro ( UFRGS 5877 View Materials ) GoogleMaps ; one female and one juvenile, Nascente que deságua no Rio São Bento, sub-bacia do Rio Mãe Luzia , Bacia do Araranguá (28°36’53,84”S; 49°33’37,26”W), 20/IX/2019, coll. C. Feltrin ( UFRGS 6917 View Materials ) GoogleMaps ; Brazil, Rio Grande do Sul: one male, Novo Hamburgo, Lomba Grande, Estrada da Integração , 26/X1985, coll. Guacira & Jackson ( UFRGS 1356 View Materials ) .

Uruguay: one male, Montevideo ( MZUSP 251 ); one sni, Maldonado, Barra do Maldonado, II/1975 (FCENUBA w/n) .

Diagnosis and description. Faxon (1898) and Buckup & Rossi (1980).

Remarks. Additional morphological characters not mentioned in previous descriptions include: eyes large ( Fig. 15A, B, C View FIGURE 15 ); front wide ( Fig. 15A, B View FIGURE 15 ); epistome anterolateral section with a sharp conical projection ( Fig. 16A View FIGURE 16 ); antennal scale lateral margin straight ( Fig. 16D View FIGURE 16 ); antennule internal ventral border of basal article with one sharp spine ( Fig. 16A View FIGURE 16 ); mandible with cephalic molar process molariform and caudal molar process bicuspidate or tricuspidate, incisor lobe with ten teeth; the third tooth from the anterior are the largest ( Fig. 16E View FIGURE 16 ); SLP4 smallest and separeted to each other, medial keel present and not inflated; SLP5 separeted to each other, median keel present and not inflated; SLP6 larger than SLP4 and SLP5 with slightly concave dorsal surface, medial keel present and inflated; SLP7 largest and with slightly concave surface, median keel present and slightly inflated; SLP8 smaller than SLP 7, median keel absent, vertical arms of paired sternopleural bridges close to each other in the superior portion, bullar lobes visible and separated to each other ( Fig. 16B, C View FIGURE 16 ); male cuticle partition present. This species resembles P. varicosus in having a long and triangular rostrum, cheliped propodus densely covered by verrucous tubercles, post orbital carinae, and largest lobe of protopod of exopod with one spine and branchiocardic grooves with elevation, but it is distinguishable by the shorter merus and internal margin of cutting edge of finger covered by tufts of setae on the proximal portion.

Distribution. Brazil: states of Rio Grande do Sul and Santa Catarina; Uruguay: departments of Montevideo and Maldonado ( Ribeiro et al. 2020).

Color of living specimens. Rostrum, cephalothorax anterior and lateral regions, dorsal pleon and tailfan light green, dark green or greenish brown. Pereiopod pairs 2–5 light green ( Fig. 17C–E View FIGURE 17 ).

Habitat and Ecology. Swamps and wetlands away from temporary or permanent water bodies and sometimes in streams near waterfalls, where they can build shallow burrows in the margins ( Fig. 17A, B View FIGURE 17 ). Burrows of P. saffordi can be identified as type 1 a, b according to Horwitz and Richardson’s (1986) classification, and the species can be considered a tertiary burrower based on Hobbs’ (1942) classification ( Ribeiro et al. 2020)

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Parastacidae

Genus

Parastacus

Loc

Parastacus saffordi Faxon, 1898

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

Parastacus saffordi

Huber, A. F. & Araujo, P. B. & Ribeiro, F. B. 2024: 13
Huber, A. F. & Araujo, P. B. & Ribeiro, F. B. 2022: 276
Rios-Escalante, P. R. & Jara-Seguel, P. & Contreras, A. & Latsague, M. & Lara, G. & Rudolph, E. & Crandall, K. A. 2022: 1130
Rogers, C. D. & Magalhaes, C. & Peralta, M. & Ribeiro, F. B. & Bond-Buckup, G. & Price, W. W. & Guerrero-Kommritz, J. & Mantelatto, F. L. & Bueno, A & Camacho, A. I. & Gonzalez, E. R. & Jara, C. G. & Pedraza, M. & Pedraza-Lara, C. & Rudolph Latorre, E. & Santos, S. 2020: 876
Crandall, K. A. & De Grave, S. 2017: 641
Hobbs, H. H. Jr. 1989: 80
Buckup, L. & Rossi, A. 1980: 673
Riek, E. F. 1971: 134
Ortmann, A. E. 1902: 293
Faxon, W. 1898: 683
1898
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