Brasiloniscus maculatus (Lemos de Castro, 1973 ) Cardoso & Campos-Filho & Araujo, 2018
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publication ID |
https://doi.org/ 10.5852/ejt.2018.434 |
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DOI |
https://doi.org/10.5281/zenodo.6486075 |
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persistent identifier |
https://treatment.plazi.org/id/03DB9962-FFA7-FFE6-FE6F-16FDCFC4F7D0 |
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treatment provided by |
Plazi |
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scientific name |
Brasiloniscus maculatus (Lemos de Castro, 1973 ) |
| status |
gen. et comb. nov. |
Brasiloniscus maculatus (Lemos de Castro, 1973) View in CoL gen. et comb. nov.
Figs 1–2 View Fig. 1 View Fig. 2 , 7A View Fig. 7
Brasiloniscus maculatus Lemos de Castro, 1973: 6 View in CoL , figs 3–4.
Brasiloniscus maculatus View in CoL – Leistikow & Wägele 1999: 42. — Schmalfuss 2003: 57. — Schmidt & Leistikow 2004: 17.
Material examined
Paratypes
BRAZIL: 4 ♂♂, 3 ♀♀, state of São Paulo, Ilha da Vitória , 30 Mar. 1965, K. Lenko leg., on tree bark ( MNRJ 6212 View Materials ). View Materials
Redescription
MEASUREMENTS. Maximum body length: 15 mm.
BODY. Habitus in lateral view as in Fig. 1A View Fig. 1 . Material depigmented due to long preservation in ethanol 70% ( Fig. 7A View Fig. 7 ). Dorsum covered by fan-shaped scale-setae and polygonal pattern scales ( Fig. 1B View Fig. 1 ), schisma with overlapping scales ( Fig. 1C View Fig. 1 ), ribs slightly developed on median and paramedian areas of pereonites, more evident on pereonites 1–5; noduli laterales 1–7 short, inserted at same distance from lateral margins and in each pereonite progressively near to posterior margin.
CEPHALON ( Fig. 1D–E View Fig. 1 ). Lateral lobes slightly bent upwards, frontal shield with lateral sides almost straight; eyes consisting of 20–25 ommatidia.
PEREON. Pereonite 1 epimeron with inner lobe of schisma rounded. Pereonites 2 and 3 with ventral lobes rounded, more conspicuous on pereonite 2 ( Fig. 1F View Fig. 1 ).
PLEON ( Fig. 1G–H View Fig. 1 ). Neopleura 5 not reaching distal margin of uropod protopod; telson with shallow dorsal depression, lateral sides concave.
ANTENNULA ( Fig. 1I View Fig. 1 ). Distal article with subapical aesthetascs.
ANTENNA ( Fig. 1J–K View Fig. 1 ). Fifth article of peduncle twice as long as flagellum. Flagellum with second and third articles subequal in length.
MOUTH. Mandible with molar penicil with about eight branches, left mandible ( Fig. 1L View Fig. 1 ) with 2+2 penicils, right mandible ( Fig. 1M View Fig. 1 ) with 1+1 penicils. Maxillula ( Fig. 1N View Fig. 1 ) inner endite bearing two hairy penicils; outer endite of 4+6 teeth, five of them with cleft apex. Maxilla ( Fig. 1O View Fig. 1 ) bilobate, strong suture line, outer lobe wider than inner lobe, both covered with setae. Maxilliped ( Fig. 1P View Fig. 1 ) palp with two long
setae on proximal article; endite subrectangular, median seta strong, surpassing distal margin, distal portion bearing many small setae.
PEREOPODS ( Fig. 2A–C, J View Fig. 2 ). With sparse setae on sternal margin, pereopod 1 carpus with distal seta serrate at apex and longitudinal antennal grooming brush; dactylus with inner claw not surpassing outer claw, dactylar and ungual setae simple.
UROPOD ( Fig. 1G–H View Fig. 1 ). Endopod about twice as long as exopod.
PLEOPOD EXOPODS. Respiratory areas as in diagnosis, exopods 1–4 with well-developed respiratory areas, reduced on exopod 5.
Male
PEREOPOD 7 ( Fig. 2C View Fig. 2 ). Base with lobe on distal sternal margin.
PLEOPODS. Pleopod 1 ( Fig. 2D–E View Fig. 2 ) exopod with deep re-entrancy on distal margin, inner margin rounded, inner and distal margin bearing setae; endopod twice as long as exopod, distal portion directed outwards with small inner lobe and narrow apex. Pleopod 2 ( Fig. 2F View Fig. 2 ) exopod triangular bearing setae; endopod slender, longer than exopod, reaching pleopod 4. Pleopod 3–5 exopod ( Fig. 2G–I View Fig. 2 ) rhomboid bearing small setae on outer margin; exopod 5 with transverse fringe of thin setae.
Remarks
Lemos de Castro (1973) mentioned the absence of respiratory area on pleopod exopods. However, the examination of the type material revealed the presence of uncovered respiratory areas in all pleopod exopods. New illustrations are provided here along with characters that were not mentioned in the original description.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Brasiloniscus maculatus (Lemos de Castro, 1973 )
| Cardoso, Giovanna Monticelli, Campos-Filho, Ivanklin Soares & Araujo, Paula Beatriz 2018 |
Brasiloniscus maculatus Lemos de Castro, 1973 : 6
| Castro, 1973 : 6 |
Brasiloniscus maculatus
| Leistikow & Wägele 1999 : 42 |
| Schmalfuss 2003 : 57 |
| Schmidt & Leistikow 2004 : 17 |