New Parabathynellidae species in Africa: the first bathynellids from Chad and an assay of their phylogenetic position in the order Bathynellacea (Crustacea: Malacostraca) based on 18 S sequences Author Camacho, A. I. Museo Nacional de Ciencias Naturales (CSIC), Dpto. Biodiversidad y Biología Evolutiva, C / José Gutiérrez Abascal 2, 28006 - Madrid, Spain; Author Brancelj, A. National Institute of Biology, Večna pot 111, 1000 Ljubljana, Slovenia; & School for Natural Sciences, Unversity of Nova Gorica, Vipavska c. 13, 5000 Nova Gorica, Slovenia; Author Dorda, B. A. Museo Nacional de Ciencias Naturales (CSIC), Dpto. de Colecciones. Col. de Tejidos y ADN, C / José Gutiérrez Abascal 2, 28006 - MADRID (Spain) Author Casado, A. Museo Nacional de Ciencias Naturales (CSIC), Dpto. de Colecciones. Col. de Tejidos y ADN, C / José Gutiérrez Abascal 2, 28006 - MADRID (Spain) Author Rey, I. Museo Nacional de Ciencias Naturales (CSIC), Dpto. de Colecciones. Col. de Tejidos y ADN, C / José Gutiérrez Abascal 2, 28006 - MADRID (Spain) text Journal of Natural History 2016 2016-08-10 50 2691 2726 http://dx.doi.org/10.1080/00222933.2016.1210260 journal article 10.1080/00222933.2016.1210260 1464-5262 5189338 Racovitzaibathynella Serban and Coineau, 1994 Amended generic diagnosis (after Schminke 2011 ): A.I 6-segmented. A.II 5-segmented; outer seta of terminal segment in male transformed into a long strong fang curved inwards. Md with big tooth of the ventral edge; lobe with row of 3 claws. Maxilla 3- segmented. Th VIII of male twice as long as wide; penial region consisting of 2 lobes: dentate and posterior lobes; dentate lobe with up to 20 denticles; external lobe fused with basipod; exopod located on distal face of basipod; endopodal segment completely reduced. Th VIII of female 1-segmented and very reduced in size. Furcal rami with 3 terminal spines. Table 1. Characters of species of the genus Haplophallonella Serban and Coineau and Racovitzaibathynella Serban and Coineau, 1994 found in Africa. 1. Haplophallonella heterodonta Serban and Coineau ; 2. Haplophallonella irenae sp, nov.; 3. Racovitzaibathynella emilei Serban and Coineau, 1994 ; 4. Racovitzaibathynella transvaalensis Serban & Coineau, 1994 and 5. Racovitziabathynella dumonti sp, nov. Abbreviations: A.I=antennule; A.II=antenna; A=absent; B=barbed; C=cave; D. end=distal endite; Endp.=endopod; Exp.=exopod; H.=homonomous; f=female; Frc.=furca; I.=Inhomonomous; L=large; m=male; max.=maximun length in mm; M=medium-sized; Md.=mandible; Mx.I=maxillule; Mx.II=maxilla; N=number of; NPr=not pronounced; Pr=pronounced; R=river bank; S=small; seg=segmented; sgt=segment; Sp=spring; Spi=spines; st.=setae; Symp=sympod; T=triangular; Th=thoracopod; Th. I=thoracopod 1; Th. VIII=thoracopod 8; Urp=uropod; W=well.; XL=extralarge; XS=extrasmall.
H. heterodonta H. irenae sp.nov. R. emilei R. tranvaalensis R. dumonti sp.nov.
A.I: N. sgts Aesthetasc seg 5 A.II: N. sgts 6 2 5 6 3 5 6 2 5 6 2 5 6 2 5
Setal formula sexual dimorphisms Labro: distal edge main teeth n. Md: D. end n.teeth proximal tooth n. teeth pars molaris Mx.I:D.end n.claw Mx.II: n. sgt n. distal claws 0/0+1/1+0/1+0/3(1) No Cleft 14 4 A 4+1 5 2 2 0/0+1/1+0/1+0/3(1) No Cleft 12 4 A 5 5 2 1 0/0+1/1+0/1+0/3(1) Yes Flat 12 4 P 3+1S 5 3 1 0/0+1/1+0/1+0/3(1) Yes Flat 12 4 P 3+1S 5 3 1 0/0/1+0/1+0/3(1) Yes Convex 8-10 4 P 3+1S 5 3 1
formula Th I: epipod Endp:sgt 2 n. st. sgt 4 n.st. Th II: epipod Th II-VII: Endp. n. plumose st. Exp. n. plumose st. Th VIII m: Form 17(1/14+2) Absent 0+1 2+1 Present 1 1 Elongated 16(2/13+1) Absent 1+1 2+1 Present 2 2 Almost square 19(2/10+1/5+1) Absent 0+1 1+2 Present 1 0 Very elongated 19(2/10+1/5+1) Absent 0+1 1+2 Present 1 0 Very elongated 17(2/9+1/4+1) Absent 0+1 2+1 Absent 1 2 Elongated
Endp. N.st basp Form Exp Th VIII f: size Absent 1 very long Claw M Absent 1 very long Bidentate claw XS Reduced to setae Absent Curved XS Reduced to setae Absent Curved XS Reduced to setae Absent Curved XS
Form Urp: Symp: spi. type spi. Exp: N. st Endp: N. spi. N. st Frc: N. spi. Anal operculum Length: Habitat Flake 3+1 I 2 1 2+2 4 Npr 0.9-1.0 I Triangular 3+1 I 2+1 1 1+3 4 Npr 0.92-0.95 I Finger-like 5+1-7+1 I 2 1 2+2 3 Npr 0.75-0.85 I Finger-like 4 H 2 1 2+2 3 Npr 0.8-1.1 I Almost triangular 5-7 H 2 1 2+2 3 Npr 0.72-1.10 I
Type species: Racovitzaibathynella emilei Serban and Coineau, 1994 . Type locality: interstitial of Mutlumuvi River, Krueger National Park, Transvaal, South Africa . Other species: Racovitzaibathynella transvaalensis Serban and Coineau, 1994 . Type locality: interstitial of Mutlumuvi River , Krueger National Park , Transvaal , South Africa .