3330 Author Pešić, Vladimir Author Smit, Harry Author Saboori, Alireza text Zootaxa 2012 2012-05-31 3330 1 67 journal article 1175­5334 Albia ( Dentalbia ) hyporheica sp. nov. ( Fig. 45A – H ) Material examined . Holotype male, dissected and slide mounted, Iran , Hormozgan Province , IR22-2011, Rudan city N of Bandar Abbass , 5 km N of Rudan , Rudan stream, interstitial (pump), 27º 28.748 N , 57º 15.648 E , 210 m asl , 21.vii.2011 ( RMNH ) . Paratypes : 0/1/0 (mounted), same data as holotype, interstitial (pump); 1/0/0 , same data as holotype, interstitial waters (dig); 2/4/0 , same data as holotype, surface waters (all RMNH ) . Diagnosis. Idiosoma dimensions small (L dorsal shield 414 – 423, ventral shield 400 – 409); glandularia on Cx- III shifted closer to D2 than E2; genital field with 6-11 Ac on each side. Description. Male ( holotype ) — Dorsal and ventral shields present; dorsal shield ( Fig. 45A ) L/W 414/247, oval, lateral margins indented posteriorly in the region of one of the posterior pair of glandularia; a ridge present on anterior and posterior portions of dorsal shield; dorsal shield colour indistinct. Ventral shield ( Fig. 45B ) L/W 409/ 263, oval, notched on lateral margins at level of posterior end of Cx-III. Gnathosomal bay L 71. Suture line of Cx- IV well developed. Genital field completely fused with the ventral shield; 6 – 7 Ac on each side; distance between most lateral pair of Ac 106; gonopore small L/W 27/4. Excretory pore and a pair of flanking glandularia fused with the ventral shield. Ejaculatory complex ( Fig. 45D ) L 65. Palp ( Fig. 45F ): total L 123, dL: P-1, 14; P-2, 22; P-3, 23; P-4, 47; P-5, 17; L P-2/P-4 ratio, 0.47. Palps without sexual dimorphism: P-2 with two enlarged setae ventrodistally, P-4 medially with a thickened seta, near proximoventral hair, P-5 abruptly tapering at distal end. Gnathosoma ( Fig. 45E ) vL 106, chelicera total L 116. Legs: dL of I-L-4-6 ( Fig. 45H ): 39, 40, 59; dL of IV-L: 74, 42, 51, 72, 72, 61; IV-L-2/3 distally with pointed sheaths covering the base of the following segment; swimming setae numbers: III-L-5, 3; IV-L-5, 3. FIGURE 41A–E . Haloaxonopsis salina sp. nov . , holotype male, IR14-2011: A – B = palp; C = I-L-5 and -6; D = ejaculatory complex; E = IV-L. Scale bar = 100 µm. FIGURE 42A–C . Haloaxonopsis salina sp. nov . , paratype female, IR14-2011: A = palp; B = chelicera; C = gnathosoma. Scale bars = 100 µm. Female ( paratype ) — Similar to male except for the shape of the genital field ( Fig. 45C ). Dorsal shield L/W 423/263; ventral shield L/W 400/281; gnathosomal bay L 71. Genital field not fused with ventral shield; 9 – 10 Ac on each side; acetabular plates L 52 – 54; distance between outer margins of acetabular plates 128. Excretory pore and a pair of flanking glandularia lying free in the integument posterior to the genital field. Palp ( Fig. 42G ): total L 120, dL: P-1, 16; P-2, 24; P-3, 23; P-4, 41; P-5, 16; L P-2/P-4 ratio, 0.59. Gnathosoma vL 77, chelicera total L 113. Legs: dL of I-L-3–6: 40, 42, 62; dL of IV-L: 72, 38, 51, 72, 72, 59; palp chaetotaxy and swimming setae numbers as in male. Etymology. The species is named for its occurrence in hyporheic waters. Remarks . The subgenus Dentalbia Cook, 1974 is characterized (after Wiles1992 ) by: 1) two glandularia (medially displaced L1 and L2 [ sensu Wiles, 1996]) located on Cx-III; 2) P-2 ventrodistally with 1-3 greatly enlarged setae; and 3) suture line between Cx-III and Cx-IV greatly reduced or absent. This subgenus includes: Albia paucipora Viets, 1935 ( Java , Indonesia ), A. dentipalpis Cook, 1967 ( India ) , A. phreatica Cook, 1967 ( India ) and A. minutissima Lundblad, 1971 ( Java , Indonesia ). Due to P-2 with two stout setae ventrodistally and the enlarged leg claws, the new species from Iran most closely resembles Albia phreatica Cook, 1967 , a hyporheobiontic species known from Maharashtra State in India ( Cook 1967 , Pešić & Ranga Reddy, 2009 ). The new species differs from A. phreaticola (in the following, in parentheses, data taken from Cook 1967 ) in its smaller size (L dorsal shield 460-517, ventral shield 464-517, in the both sexes), the lower number of Ac on each side (13-25 Ac, in the both sexes), and in the glandularia on Cx-III shifted closer to D2 than E2 (closer to E2 than to D2). Habitat. Interstitial waters associated with sand and gravel deposits of stream. Distribution. Iran ; only known from the interstitial waters in Hormozgan Province .