Fig 1.
Live specimens of Surazomus algodoal.
Dorsal view: (A) male, (B) female.
Fig 2.
(A) live female, lateral view (internal pygidial gland shown), (B) detail of posterior portion of opisthosoma, showing pygidial gland and setae of flagellum. Abbreviation: (VS) vaporizer sclerite. For flagellar setae, see text.
Fig 3.
(A-D) pygidial flagellum: (A) dorsal view, (B) dorsolateral view, (C) ventral view, (D) lateral view.
Fig 4.
Genitalia of Surazomus algodoal.
(A-C) male, cleared: (A) ventral view, (B) dorsal view, (C) ventral view, (D-E) female, ventral view. Abbreviations: (Br) bridge, (DAFu) dorsal arm of furcula, (Gp) gonopod, (FGp) fold of gonopod, (H) hook of fistula, (LBFu) lateral bar of furcula, (Pt) pterapophysis, (VAFu) ventral arm of furcula.
Fig 5.
Male genitalia of Surazomus algodoal.
(A-B and D) ventral view, (C) dorsal view. Abbreviations: (AM) anterior muscle, (ATM) anterior transverse muscle, (Br) bridge, (DAFu) dorsal arm of furcula, (FGp) fold of gonopod, (Fi) fistula, (H) hook of fistula, (LaM) lamina medialis, (LBFu) lateral bar of furcula, (LF) lateral flap, (LoL1) lobus lateralis primus, (LoL2) lobus lateralis secundus, (MA) median apodeme, (MF) median field, (MS) median septum, (OM) oblique muscle, (PF) papillate flap, (PM) posterior muscle, (Pt) pterapophysis, (PTM) posterior transverse muscle, (VAFu) ventral arm of furcula.
Fig 6.
Male genitalia of Surazomus algodoal.
(A) gonosternite, dorsal view (ventral lip of gonotreme in yellowish brown; dorsal lip of gonotreme in green; furcula in blue; two red markings show fracture of furcula holding dorsal lip), (B) detail of previous showing tubercles along booklung opening, (C) sternite III, antero-ventral view, (D) detail of previous showing diverticuli on anterior border of sternite. Abbreviation: (Gp) gonopod.
Fig 7.
Male genitalia of Surazomus algodoal.
(A) gonosternite, posterior view, (B) detail of previous showing punctuations on median septum, (C) detail of previous showing gonopod and fistula, with hook, (D) detail of previous showing base of gonopods beneath gonotreme. Abbreviations: (DLGt) dorsal lip of gonotreme, (Gp) gonopod, (Gt) gonotreme, (H) hook of fistula, (VLGt) ventral lip of gonotreme.
Table 1.
Classification and distribution of setae according of microtrichium patterns along seta shaft in S. algodoal.
Fig 8.
Right chelicera of the female of Surazomus algodoal, showing seta types.
(A) prolateral view (white boxes shown in more details in following illustrations; white arrows show slit sensilla; yellow names refer to seta type), (B) detail showing bases of setae G2 and G3A, (C) detail showing hyaline teeth and guard tooth (red arrow), bases of setae G1 and G3B, (D) detail of fixed finger with setae G5A, (E) detail of one G4 seta, (F) detail of a segment of G6 seta, (G) detail showing G7 setae. All prolateral view.
Table 2.
Update in knowledge on setae present on the chelicera of S. algodoal.
Fig 9.
Right male pedipalp of Surazomus algodoal.
(A-B) holotype: (A) retrolateral view, (B) prolateral view, (C-E) male UFPA-SCH-001: (C) trochanter, ventral view, (D) patella, ventral view, (E) tibia, ventral view. Different colors show seta groups. Abbreviations: (AP) apical process, (Cx) coxa, (F) femur, (MSp) mesal spur, (P) patella, (pTS) prolateral tarsal spur, (rTS) retrolateral tarsal spur, (T) tibia, (TA) tarsus, (TR) trochanter. For seta names, see text. Seta names in parentheses show setae present in the holotype, but absent in male UFPA-SCH-001.
Fig 10.
Pedipalp of Surazomus algodoal.
(A) juvenile, left pedipalp, retrolateral view (green arrow shows lyriform organ), (B) detail of previous illustration showing tarsal spurs, (C) female, right pedipalp (detached), prolateral view, (D) detail showing mesal spur, (E) male, right pedipalp (detached), prolateral view (male dimorphic apophyses shown by blue arrow on trochanter and by red arrow on patella), (F) detail of tarsus, showing cuticular organs (white arrows show rosette-shaped glandular openings; yellow arrows show slit sensilla), (G) tibia, prolateral view (male), showing cuticular organs (white arrows show rosette-shaped glandular openings), (H) slit sensillum, (I), slit-like glandular opening.
Fig 11.
Pedipalp of Surazomus algodoal.
(A) male, patella of right pedipalp, prolateral view, (B) detail of previous illustration showing rosette-shaped glandular openings.
Fig 12.
(A) juvenile, anterior legs, dorsal view, (B) detail of previous illustration showing pair of trichobothria on tibia I, (C) juvenile, anterior legs, retrolateral view, (D) femur of leg I, (E) tip of patella of leg I, (F) detail of previous showing slit-like glandular opening, (G) tibia of leg I, (H) detail of previous showing slit-like glandular openings, (I) tip of leg I.
Fig 13.
Tip of leg I of Surazomus algodoal.
(A) tarsomeres, retrolateral view, (B) articulation metatarsus-tarsus of leg I, dorsal view, (C) tip of leg I, (D) detail of club seta. Yellow arrows: club setae; Red arrows: rosette-shaped glandular opening; White arrows: lyriform organ.
Fig 14.
(A) tip of tibia, dorsal view, (B) detail of previous showing trichobothrium base, (C) tip of leg, (D) detail of previous showing tarsal claws.
Fig 15.
Opisthosoma of Surazomus algodoal, female.
Ventral view, showing segments X-XII (area with bifid/trifid setae) and base of pygidial flagellum. Yellow arrows: slit-like glandular openings; red arrows: rosette-shaped glandular openings.
Fig 16.
(A-D) pygidial flagellum: (A) dorsal view, (B) dorsolateral view, (C) ventral view, (D) lateral view.
Fig 17.
Surazomus algodoal, male pygidial flagellum.
(A) anterior pocket bearing seta Dl1 (red arrow), (B) lateral lobe bearing several rimmed pores (white arrows); (C) median lobe bearing several rimmed pores (white arrows).
Fig 18.
Surazomus algodoal, male pygidial flagellum.
Variation in microsetae (red for dorsal, blue for lateral and green for ventral setae). (A-B) dorsal view, (C-D) ventral view.
Table 3.
Classification of cuticular structures in S. algodoal.
Fig 19.
Surazomus algodoal, female pygidial flagellum.
(A) tip, ventral view, (B) detail of previous illustration showing rosette-shaped glandular opening.
Fig 20.
Surazomus algodoal, female, tip of opisthosoma.
Ventral view (only tergites/sternites IX-XII preserved), showing pygidial glands. (A) before, and (B) after KOH maceration.
Fig 21.
Surazomus algodoal, female, tip of opisthosoma.
Posterior view, showing vaporizer sclerites of pygidial glands beside the flagellar articulation. Abbreviation: (VS) vaporizer sclerite.
Table 4.
New terminology and comparison of male genital structures used herein and by Modder [33] and Giupponi & Kury [37].
* Terms newly proposed.