Selenoribates quasimodo Pfingstl 2013

Adult: Females (N=14), length: 222–244 μm (mean 231 μm), width: 136–152 µm (mean 142 µm); males (N=16), length: 212–238 μm (mean 226 μm), width: 131–147 µm (mean 137 µm) Integument. Colour red brown. Cerotegument appears basically slightly granular. Cerotegument of prodorsum nearly smooth between bothridia, strongly granular anterior and lateral to lamellar ridges. Cerotegument of notogaster and venter slightly granular. Cerotegument of lateral body parts generally finely granular, larger granules in areas surrounding acetabula. Cerotegument of legs slightly granular. Prodorsum. Rostrum rounded in dorsal view, but slightly projecting anteroventrally in lateral view. Rostral setae (ro) short and smooth. Lamellar setae (le) and interlamellar setae (in) simple, short and smooth. Exobothridial setae (ex) minute. Lamellar ridge conspicuous, but short, not reaching insertions of lamellar setae. Bothridium large cup exhibiting a strongly projecting posterior ridge with three lobe-like protrusions overhanging anterior border of gastronotic region. Sensillus long (ca. 50µm) and flagelliform. Tutorium developed as slightly dorsally curved ridge. Gnathosoma. Pedipalp pentamerous 0-2-1-3-9 (including solenidion) (Fig. 1A). Solenidion erect, not fused with eupathidium acm. Chelicera chelate, in lateral view forceps-like and each digit with two teeth, whereas from frontal view most distal teeth split into two symmetrical teeth (Fig. 1B). No porose area on proximal part of fixed digit discernable. Seta cha and chb dorsally slightly pectinate, both same length. Distal part of rutellum developed as thin triangular slightly curved inward membrane (Fig. 1C). Setae a and m long and smooth. Mentum regular, setae h simple, thin and long. Notogaster (Figs 2A, 3A). Rounded in dorsal view, hunchbacked in lateral view. Anterior margin of notogaster distinct. A large, arched depression on anterior part of notogaster showing obvious granulation. Fourteen pairs of simple notogastral setae (approximate length 5–7 µm), c1-2, da, dm, dp, la, lm, lp, h1-3, p1-3; c3 absent. Notogastral setae sometimes completely covered by a layer of cerotegument. Porose areas or distinct pores absent. Five pairs of notogastral lyrifissures present; ia next to setae c2 close and rectangular to anterior notogastral border; im slightly anterior and laterad of setae la; lyrifissures ih, ip and ips laterally close to lateroventral borders of notogastral plate. Opisthonotal gland openings (gla) located posteriorly to lyrifissures im. Lateral aspect (Figs 2C, 3C). Pedotectum I small but thick, pedotectum II absent. Lateral parts of anterior margin of notogaster broad and deep, showing conspicuous granules. Enantiophyse consisting of two strong triangular teeth orientated against each other. Discidium developed as strong rectangular bulge between acetabulum III and IV. Ventral region of idiosoma (Figs 2B, 3B). Epimeral setation 1-0-1-1, seta 1b long reaching trochanter II, setae 3b normal length and 4a short. Internal borders of all epimera well visible, sternal apodemes II, sejugal and III well developed. A densely granulated median sternal cavity on epimeron I. Three pairs of short and fine genital setae, arranged in longitudinal rows, anterior two pairs close to each other. Insertion of tendon β next to anterior corners of genital orifice. Aggenital setae absent. Anal plates triangular. Preanal organ triangular in ventral view. Two pairs of short anal setae, an1-2, present. Two pairs of short and simple adanal setae ad1-2 present, ad3 absent. Lyrifissure iad obliquely, adjacent to anterior corners of anal orifice. Legs. Monodactylous. Long hook-like claws with one conspicuous proximoventral and one minuscule proximodorsal tooth. Trochanters III and IV with an obvious triangular dorsodistal projection. Femora with slightly projecting ventral carinae. All tarsi with one proximal lyrifissure. No porose areas on femora discernable. Solenidia φ1 on tibia I long and orientated backwards. Chaetome and Solenidia see Table 1.

Bermuda: Coney Island, 32°21'30"N, 64°42'59"W, lower intertidal area, sand and algae growing on mangrove roots, 18 October 2011.