Culterthelphusa simoni ( Rathbun, 1905 ), 2017

Culterthelphusa simoni ( Rathbun, 1905) View in CoL n. comb.

( Fig. 2 View Figure 2 )

Pseudothelphusa simoni Rathbun, 1905: 291 View in CoL . — Rathbun, 1906: 501. — Coifmann, 1939: 109 [list]. — Weibezahn, 1952: 68. — Rodríguez, 1966: 118, fig 4.

Pseudothelphusa chacei Crane, 1949: 26 View in CoL , fig. 3. — Weibezahn, 1952: 70.

Guinotia (Neopseudothelphusa) simoni simoni — Pretzmann, 1965: 3.

Guinotia (Neopseudothelphusa) simoni chacei — Pretzmann, 1965: 3.

Potamocarcinus (Kingsleya) venezuelensis simoni — Bott, 1967: 302, fig. 2.

Potamocarcinus (Kingsleya) venezuelensis venezuelensis View in CoL — Bott, 1967: 302, fig. 1.

Eudaniela (Microthelphusa) simoni simoni — Pretzmann, 1971: 17. — Pretzmann, 1972: 23.

Eudaniela (Microthelphusa) simoni chacei — Pretzmann, 1971: 17. — Pretzmann, 1972: 24.

Neopseudothelphusa simoni View in CoL — Rodríguez, 1981: 49 [list]. — Rodriguez, 1982: 167, fig 116. — Magalhães, 1987: 55, figs. 1, 2. — Ng et al., 2008: 175 [list].

Material examined. Venezuela, Aragua, Rancho Grande, 1100 m., 15.iii.1945, J. Crane leg., 1 male ( USNM 87067 About USNM ) . — Miranda, Parque Nacional Guatopo, 750 m. , C. Brandão leg., C. Magalhães det., 1 male ( MZUSP 6388 View Materials ); Turgua , 1100 m , 14.viii.1948, M. Campos det., 1 male, 1 female ( USNM 89643 About USNM ); Turgua , 1099 m ., 11.ix.1948, F. Martins leg., M. Campos det., 2 males ( USNM 90591 About USNM ). Turgua , 1100 m , 11.ix.1949, F. Martins leg., M. Campos det., 2 males ( USNM 90602 About USNM ) .

Type locality. Venezuela, Aragua: Colonia Tovar .

Remarks. Culterthelphusa simoni n. comb. differs from Neopseudothelphusa fossor in the following characters of the G1: (i) the marginal process is slightly curved to the lateral side, the apex is sharp, prolonged above the opening of spermatic channel in C. simoni n. comb. ( Fig. 2A View Figure 2 ) [marginal process straight, apex truncated and prolonged at the same level of the opening of spermatic channel in N. fossor ( Fig. 1A View Figure 1 )]; (ii) the apex of the marginal process is well distinct from the crest of the distal lobe of the apical plate in C. simoni n. comb. ( Fig. 2B View Figure 2 ) [apex of marginal process fused to the crest of the distal lobe of the apical plate in N. fossor ( Fig. 1B View Figure 1 )]; (iii) the apical plate is large, wide, and subquadrate in C. simoni n. comb. ( Fig. 2 A, B View Figure 2 ) [apical plate narrow and subtriangular in N. fossor ( Fig. 1A, B View Figure 1 )]; (iv) the distal and proximal lobes of the apical plate are indistinct in C. simoni n. comb. ( Fig. 2B View Figure 2 ) [distal and proximal lobes of the apical plate well distinct, split by a deep notch in N. fossor ( Fig. 1A–C View Figure 1 )]; (v) there is a deep subterminal groove in sternal view, preceding the mesial process in C. simoni n. comb. ( Fig. 2C View Figure 2 ) [sternal surface smooth, subterminal groove preceding the mesial process absent in N. fossor ( Fig. 1C View Figure 1 )]; (vi) the lateral surface is flat in the subterminal region, devoid of any subterminal bulge in C. simoni n. comb. ( Fig. 2A–C View Figure 2 ) [strong subterminal bulge as seen in lateral view in N. fossor ( Fig. 1A–C View Figure 1 )]; (vii) the mesial process is about twice as large as the apical plate, and is cultriformin C. simoni n. comb. ( Fig. 2A, B View Figure 2 ) [mesial process almost the same size of the apical plate, subquadrate, in N. fossor ( Fig. 1A, B View Figure 1 )].

The morphology of the G1 of Culterthelphusa simoni n. comb. closely resembles that of Prionothelphusa eliasi Rodriguez, 1980 and Microthelphusa racenisi ( Rodríguez, 1966) since in these three species the apical plate is wide, subquadrate, and the distal and proximal lobes are complete fused.