taxonID	type	description	language	source
9123F87D00935C2BA66BD65439865886.taxon	description	Fig. 6 L	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
9123F87D00935C2BA66BD65439865886.taxon	distribution	Distribution. Widely distributed in the Mediterranean and Black Sea area.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
31F00CBFA90B5D8B908AB7D76710C753.taxon	description	Fig. 6 B	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
31F00CBFA90B5D8B908AB7D76710C753.taxon	distribution	Distribution. Portugal, Spain, Italy, France (Corsica), Malta, Tunisia, and Morocco.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
6561F11ACA8A5B5C9CE9923897D561CC.taxon	description	Fig. 6 H	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
6561F11ACA8A5B5C9CE9923897D561CC.taxon	distribution	Distribution. United Kingdom, France, Iberian Peninsula, The Netherlands, Belgium, Morocco, and Western Sahara. It was introduced to Australia (Tasmania) and French Guiana.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
06ADCA74A36F5F7198D3AC53E41699DC.taxon	description	Figs 2, 3, 4, 5, 6 K	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
06ADCA74A36F5F7198D3AC53E41699DC.taxon	description	Description. Maximum length: ♂ 7.5 mm; ♀ 9.5 mm. Body strongly convex, able to roll up into perfect ball, euspheric type. Colour light brown, as in E. matae and E. tuberculata. Dorsal surface with ornamentation consisting of protruding crests on posterior margins of cephalon, pereonites 1 – 7 tergites and median part of pleonites 1 – 5, each crest ending in lobes of irregular shape and number; telson with two small paramedian tubercles (Figs 2 A – E, 3 A, G, H, 6 K). Dorsum with scattered pointed scale-setae (Fig. 3 B) and one line of noduli laterales per side located near top of crests on pereonites 1 – 7 far from lateral margins (Fig. 3 G). Cephalon (Figs 2 A – D, 3 A, 6 K) with triangular scutellum distinctly separated from and not bent over vertex; distinct frontal line and no postscutellar line; oblique antennary lobes, quadrangular and directed frontwards. Eye consisting of single large ocellus as in Fig. 2 A, C. Pereonite 1 (Figs 2 A, C, 3 C, D, 6 K) with deep dorsal groove on lateral margin, schisma on posterior corners with rounded inner lobe distinctly shorter than outer lobe; posterior margin slightly concave at sides. Pereonites 2 and 3 (Fig. 3 E, F) epimera quadrangular with small and rounded lobe on ventral side. Pereonites 4 – 7 with quadrangular epimera and straight posterior margins. Pleonites 3 – 5 (Fig. 3 G) with rectangular epimera, slightly divergent. Telson (Fig. 3 G, H) triangular, wider than long, with slightly concave sides and rounded apex. Antennula (Fig. 3 I) of three articles, second article much shorter than first and third, third article with tuft of superimposed aesthetascs subapically. Antenna (Fig. 4 A) with flagellum slightly shorter than fifth article of peduncle, second flagellar article more than twice as long as first, bearing two aesthetascs on middle part. Mandibles (Fig. 4 B, C) with dichotomized molar penicil and three or four free penicils; right mandible with one penicil and left mandible with two penicils on hairy lobe. Maxillula (Fig. 4 D) outer lobe with 4 + 6 (5 cleft) teeth; inner lobe with two thick subapical penicils and small triangular distal point. Maxilla (Fig. 4 E) apically setose with outer lobe rounded, much wider than inner lobe. Maxilliped (Fig. 4 F) with quadrangular endite bearing two triangular spines on distal margin and large subapical seta; basal article of palp with two large setae. Uropod (Fig. 4 G) flattened; exopod about twice as wide as long with slightly concave distal margin; endopod slightly protruding backwards compared with exopod. Male. Pereopod 1 – 3 (Fig. 5 A) with line of pointed setae on sternal margins of carpus and, to lesser extent, merus. Pereopod 7 (Fig. 5 B) ischium with sternal margin distinctly concave, distal margin with rounded lobe and four stout setae; merus with sternal margin slightly convex; merus and carpus with line of long setae on sternal margin. Genital papilla (Fig. 5 C) fusiform. Pleopod 1 (Fig. 5 C) exopod with large distal lobe bent outwards and apically rounded; endopod with distal part quadrangular and short apical lobe directed outwards. Pleopod 2 (Fig. 5 D) exopod triangular with a line of about five short setae on outer margin; endopod slightly longer than exopod. Pleopods 3 – 5 exopods as in Fig. 5 E – G.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
06ADCA74A36F5F7198D3AC53E41699DC.taxon	etymology	Etymology. From Latin cristatus = crested. The name refers to the high crests on the posterior margins of the body segments.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
5857BBC77EF45E4BA05D019B43C83A8C.taxon	description	Fig. 6 J	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
5857BBC77EF45E4BA05D019B43C83A8C.taxon	distribution	Distribution. Endemic to Portugal.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
6DE9514DFFA75A32BF914D3F2AF3D8D8.taxon	description	Fig. 6 I	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
6DE9514DFFA75A32BF914D3F2AF3D8D8.taxon	distribution	Distribution. Endemic to Portugal.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
A246634896EE51ABAFE9FF6FA6EF0D6E.taxon	description	Fig. 6 E	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
A246634896EE51ABAFE9FF6FA6EF0D6E.taxon	distribution	Distribution. Common across Europe and introduced into many parts of the world.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
79A2CEE4792E501BB0BEA217F19148DF.taxon	description	Fig. 6 F	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
79A2CEE4792E501BB0BEA217F19148DF.taxon	distribution	Distribution. Portugal, NW Spain, and France.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
F1535111AE995F6491CAC6FBC4D0B7F6.taxon	description	Fig. 6 G	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
F1535111AE995F6491CAC6FBC4D0B7F6.taxon	distribution	Distribution. Portugal and western Spain.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
43BCC4584F9857AD9854CB3426332654.taxon	description	Fig. 6 D	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
43BCC4584F9857AD9854CB3426332654.taxon	distribution	Distribution. Widespread in Europe and introduced into many parts of the world.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
3BFD377A885757818359D7ED4BBDEACA.taxon	description	Fig. 6 C	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
3BFD377A885757818359D7ED4BBDEACA.taxon	distribution	Distribution. United Kingdom, France and Iberian Peninsula.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
2723060D34EE5863A4E05439DC7CF412.taxon	description	Fig. 6 A	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
2723060D34EE5863A4E05439DC7CF412.taxon	distribution	Distribution. Endemic to Portugal. This species is widely distributed throughout the country.	en	Eusébio, Rita P., Taiti, Stefano, Reboleira, Ana Sofia P. S. (2025): Terrestrial isopods (Crustacea, Isopoda, Oniscidea) from Mesovoid Shallow Substratum habitats of Portugal. Subterranean Biology 53: 129-153, DOI: 10.3897/subtbiol.53.163632
