Brasiloniscus verrucosus (Lemos de Castro, 1973 )

Cardoso, Giovanna Monticelli, Campos-Filho, Ivanklin Soares & Araujo, Paula Beatriz, 2018, Taxonomic revision of Brasiloniscus (Oniscidea, Pudeoniscidae) with description of a new species, European Journal of Taxonomy 434, pp. 1-16: 6-9

publication ID

https://doi.org/10.5852/ejt.2018.434

persistent identifier

http://treatment.plazi.org/id/03DB9962-FFA0-FFEB-FE92-10B1CD1BF15D

treatment provided by

Plazi

scientific name

Brasiloniscus verrucosus (Lemos de Castro, 1973 )
status

gen. et comb. nov.

Brasiloniscus verrucosus (Lemos de Castro, 1973)  gen. et comb. nov.

Figs 3–4View Fig. 3View Fig. 4, 7B View Figure

Brasiloniscus verrucosus Lemos de Castro, 1973: 9  , fig. 5.

Brasiloniscus verrucosus  – Leistikow & Wägele 1999: 42. — Schmalfuss 2003: 57.

Material examined

Paratypes

BRAZIL: 1 ♀, state of Rio de Janeiro, Fazenda Cachoeirinha do Cedro, Rubião, 3 Feb. 1959, Lemos de Castro and A. Coelho leg. ( MNRJ 6214View Materials)  ; 1 ♀, Parque Nacional da Serra dos Órgãos, Teresópolis , 1000 m, Apr. 1947, P. Wygod leg. ( MNRJ 6215View Materials)  .

Redescription

MEASUREMENTS. Maximum body length: 8 mm.

BODY. Habitus in lateral view as in Fig. 3A View Figure . Material depigmented due to long preservation in ethanol 70% ( Fig. 7B View Figure ). Dorsum ( Fig. 3A View Figure ) with well-developed ribs and tubercles on median and paramedian areas of pereonites; noduli laterales short, inserted far from lateral margin and in each pereonite progressively near to posterior margin.

CEPHALON ( Fig. 3B–C View Figure ). Lateral lobes slightly bent upwards, frontal shield with lateral sides concave; eyes consisting of 15 ommatidia.

PEREON. Pereonite 1 epimeron with strong dorsolateral furrow with posterior margin elongated, ventral lobe of schisma narrow, directed backwards, dorsal lobe subrectangular slightly directed outwards, surpassing lateral margin of inner lobe. Pereonites 2 and 3 with ventral lobes rounded, more conspicuous on pereonite 2 ( Fig. 3A, D View Figure ).

PLEON ( Fig. 3E View Figure ). Neopleura 5 not surpassing distal margin of uropod protopod; telson with shallow dorsal depression, lateral sides concave.

ANTENNULA ( Fig. 3F View Figure ). Proximal and distal articles similar in length, distal article with subapical aesthetascs.

ANTENNA ( Fig. 3G–H View Figure ). Fifth article of peduncle longer than flagellum. Flagellum with third article slightly longer than second.

MOUTH. Buccal pieces (not drawn) as in B. maculatus  .

PEREOPODS 1–7 ( Fig. 4A–C View Figure ). With sparse setae on sternal margin, carpus 1 with distal seta serrate at apex, longitudinal antennal grooming brush; dactylus with inner claw not surpassing outer claw, dactylar and ungual setae simple.

FEMALE PLEOPOD 1–5 EXOPODS. As in Fig. 4D–H View Figure . Uropod ( Fig. 3E View Figure ) endopod about twice as long as exopod.

Remarks

Lemos de Castro (1973) provided the description of this species based on females. Even though the respiratory area can be seen, it is not possible to compare the male characters. Also, as mentioned by Lemos de Castro (1973), B. verrucosus  gen. et comb. nov. differs from B. maculatus  gen. et comb. nov. by the distinct dorsal tuberculation, the shape of telson with distal portion narrower, the shape of schisma on pereonite 1, and the shape of ventral lobes on pereonites 1 and 2. All these characteristics were confirmed here, however male characters remain unknown.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Isopoda

Family

Pudeoniscidae

Genus

Brasiloniscus

Loc

Brasiloniscus verrucosus (Lemos de Castro, 1973 )

Cardoso, Giovanna Monticelli, Campos-Filho, Ivanklin Soares & Araujo, Paula Beatriz 2018

2018
Loc

Brasiloniscus verrucosus Lemos de Castro, 1973 : 9

: 9

Loc

Brasiloniscus verrucosus

: 42 : 57