scholarly journals A new species of scaly blenny of the genus Labrisomus (Actinopterygii: Labrisomidae) from the tropical West Atlantic

Zootaxa ◽  
2009 ◽  
Vol 2015 (1) ◽  
pp. 62-68 ◽  
Author(s):  
IVAN SAZIMA ◽  
ALFREDO CARVALHO-FILHO ◽  
JOÃO LUIZ GASPARINI ◽  
CRISTINA SAZIMA

A new species of scaly blenny, Labrisomus conditus sp. n., is described from Fernando de Noronha Archipelago, off northeastern Brazil. It differs from its Western Atlantic congeners by the following combination of characters: nuchal cirri when depressed not reaching dorsal-fin origin, 68 to 73 lateral line scales, first and second dorsal-fin spines slightly shorter than third spine and not flexible, numerous pale dots overall (light blue in life), opercular dark spot with incomplete and diffuse broad pale margin (orange in life). The new species is a territorial bottom-dweller in rocky shores and is found among algae and in crevices at depths from 0.5 to 6 m. Labrisomus conditus sp. n. feeds mostly on crustaceans (crabs, amphipods) and molluscs (snails, bivalves). The new species increases to five the species within the genus Labrisomus recorded from Southwestern Atlantic.

2004 ◽  
Vol 2 (4) ◽  
pp. 206-208 ◽  
Author(s):  
Cláudio L. S. Sampaio ◽  
José de Anchieta C. C. Nunes ◽  
Liana F. Mendes

Acyrtus pauciradiatus, new species, is described on the basis of three specimens collected at Fernando de Noronha Archipelago, state of Pernambuco, Brazil. It differs from its congeners by having a reduced number of rays in the pectoral, dorsal, and anal fins and is more isolated geographically, than any other species in the genus.


Zootaxa ◽  
2008 ◽  
Vol 1932 (1) ◽  
pp. 27-32 ◽  
Author(s):  
IVAN SAZIMA ◽  
ALFREDO CARVALHO-FILHO ◽  
CRISTINA SAZIMA

A new species of cleaner goby, Elacatinus phthirophagus sp. n., is described from Fernando de Noronha Archipelago, off northeastern Brazil. It differs from its congeners of the putative “randalli-evelynae” cleaning clade by the following combination of characters: mouth subterminal, pale (bright yellow in life) elliptical spot on dark snout, width of lateral pale (bright yellow in life) stripe almost equal as eye diameter (slightly narrower in live individuals), light purplish sheen (in life) extending laterally from below eye to tail origin, no blue line (in life) from below eye to end of opercular margin, teeth multiserial on the distal portion of both jaws, males with 3 enlarged and recurved teeth on dentary inner row. The new species was recorded at depths ranging from 3 to 18 m and is ubiquitous in the archipelago islets. It tends cleaning stations on coral heads, sponges, and rocky substrata, with up to 15 individuals present in large stations, particularly those on sponges. Elacatinus phthirophagus sp. n. was recorded to clean about 30 species of fish clients, including large carnivores such as the shark Carcharhinus perezi and smaller carnivores such as the grouper Cephalopholis fulva, besides small clients like the planktivorous damselfish Chromis multilineata and the zoobenthivorous butterflyfish Chaetodon ocellatus. The new species increases to three the number of cleaner gobies recorded for Southwestern Atlantic, one from the coast and two from oceanic islands.


Zootaxa ◽  
2006 ◽  
Vol 1328 (1) ◽  
pp. 51 ◽  
Author(s):  
PROSANTA CHAKRABARTY ◽  
RONALD G. OLDFIELD ◽  
HEOK H. NG

Nandus prolixus sp. nov. is described from the Sepilok River drainage in Sabah, northeastern Borneo. This species is distinguished from its only Sundaic southeastern Asian congener, N. nebulosus, in having a longer, more produced snout (25.7–30.6% HL vs. 18.5–26.1), more lateralline scales (33–37 vs. 24–34), more scales below the lateral line (12 vs. 10–11), fewer spines in the dorsal fin (XIV vs. XV–XVI), and fewer pectoral-fin rays (15–16 vs. 17–19). It differs from N. nandus (from India) in having fewer lateral-line scales (33–37 vs. 42–55), fewer scales above the lateral line (4–5 vs. 6–7), fewer scales below the lateral line (12 vs. 14–18), more dorsal spines (XIV vs. XII–XIII), and the absence (vs. presence) of a distinct dark spot at the base of the caudal peduncle. It differs from N. oxyrhynchus (from mainland southeastern Asia) in having a more slender body (body depth 37.6–40.5% SL vs. 41.3–44.1) and a less steeply sloping predorsal profile.


Zootaxa ◽  
2011 ◽  
Vol 3086 (1) ◽  
pp. 57 ◽  
Author(s):  
MARCOS TAVARES ◽  
ALLYSSON P. PINHEIRO

A new species of the deep-water crab genus Chaceon Manning & Holthuis, 1989 (Geryonidae Colosi, 1923), is described from southwestern Atlantic. It is the ninth species of the genus known from the western Atlantic. It is most closely related to C. eldorado Manning & Holthuis, 1989, C. notialis Manning & Holthuis, 1989, and C. ramosae Manning, Tavares & Albuquerque, 1989, from which it can be readily differentiated in having the dactyli of P2-P5 laterally compressed, instead of being dorsoventrally depressed. A key to the western Atlantic species of Chaceon is provided.


Author(s):  
G. Muricy ◽  
J.V. Minervino

A new species of Gastrophanella, G. cavernicola sp. nov. (Demospongiae: Siphonidiidae), is described from submarine caves in Fernando de Noronha Island (north-east Brazil), Carrie Bow Cay and Columbus Cay, Belize (central Western Atlantic), at depths of 5-30 m. It differs from all other species of the genus by its lobate shape with thin superficial canals and centrotylote tylostrongyles. Gastrophanella cavernicola sp. nov. is the second record of the genus Gastrophanella from both Brazil and the Caribbean. It is the sixth ‘lithistid’ sponge reported from the Brazilian coast, whereas at least 32 other desma-bearing sponges are known from the Caribbean. The genus now includes five valid species, G. implexa Schmidt from the West Indies (type species), G. mammilliformis Burton from South Africa, G. primore Gómez from the Pacific Coast of Mexico, G. stylifera Mothes & Silva from south Brazil, and G. cavernicola sp. nov. from north-east Brazil and Belize. Aciculites oxytylota Lévi & Lévi from New Caledonia is transferred to Siphonidium Schmidt. The family Siphonidiidae Lendenfeld, which is probably related to order Hadromerida, is redefined to contain only Siphonidium and Gastrophanella, both with fused rhizoclone desmas associated to microspined exotyles.


Phytotaxa ◽  
2015 ◽  
Vol 202 (1) ◽  
pp. 15 ◽  
Author(s):  
Jomar Gomes Jardim ◽  
CHARLOTTE M. TAYLOR ◽  
Maria REGINA BARBOSA ◽  
MARIA DO CÉO R. PESSOA

Chiococca and Salzmannia are similar and related, but have not been well studied. A review of their morphology clarified their separation and found that some variation documented in Chiococca has been overlooked, and the corolla lobes of Salzmannia are narrowly imbricated, not valvate in bud, and its flowers are protandrous and homostylous, with the style markedly elongated after anthesis. Chiococca is represented in northeastern Brazil by four species, and their distinctions are clarified. The problematic species Erithalis insularis, of Fernando de Noronha Island, better agrees morphologically and biogeographically with Chiococca, and is here transferred to this genus with the new combination Chiococca insularis; Erithalis is therefore restricted to the Caribbean basin. Salzmannia is endemic to coastal eastern and northeastern Brazil, and comprises two species; S. arborea, described here, is found along the coast of Bahia and notable in its tree habit and dimorphic vegetative and reproductive stems.


Zootaxa ◽  
2019 ◽  
Vol 4576 (2) ◽  
pp. 326
Author(s):  
WILLIAN M. OHARA ◽  
FERNADO C. JEREP ◽  
MARCEL R. CAVALLARO

A new species of Microschemobrycon with a restricted distribution was recently discovered in the Rio Curuá, Rio Xingu basin, Pará, Brazil. Microschemobrycon cryptogrammus new species can be promptly distinguished from all congeners by the presence of a rounded, dark, conspicuous caudal-peduncle blotch and by a subjacent dark midlateral stripe visible in life. Additionally, the new species can be distinguished from all its congeners, except M. elongatus, by the presence of a longitudinal dark stripe along the lower jaw. The new species can be distinguished from M. elongatus by presenting lateral line with 36–38 pored scales, anterior and posterior nostrils coalescend, dark chromatophores concentrated along the ventral margin of the caudal peduncle and by the presence in life of a dark spot at the base of the dorsal-fin origin. 


Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 228
Author(s):  
CHAIWUT GRUDPAN ◽  
JARUNGJIT GRUDPAN

Thryssocypris wongrati, a new species of cyprinid from the Chao Phraya basin, Thailand, is distinguished from all otherspecies of Thryssocypris by having a combination of the origin of the dorsal fin behind the origin of the anal fin, 37–40lateral-line scales, 16 circumpeduncular scales, and a dark spot at the base of the caudal fin. Thryssocypris wongrati oc-cupies the lower part of the Chao Phraya basin where it has been recorded from irrigation canals in Sing-Buri up to the most northern part of the basin in the Nan River in Phitsanulok Province.


Zootaxa ◽  
2009 ◽  
Vol 2006 (1) ◽  
pp. 51-61 ◽  
Author(s):  
CARLOS A. RANGEL ◽  
LIANA F. MENDES

Species of the family Blenniidae from Fernando de Noronha Archipelago (03°51’S, 32°26’W), an oceanic island 345 km off northeastern Brazil, are reviewed in this study, which includes the description of a new species of Scartella. The new species differs from its congeners by the combination of the following characters: well-marked diagonal dark line just under the eye, tiny black spots on the head, small black and white spots along the body, 14 segmented dorsal-fin rays, 15 segmented anal-fin rays, and 23 caudal vertebrae. This is the second Scartella species described from Brazilian oceanic islands.


2005 ◽  
Vol 74 (3-4) ◽  
pp. 271-278 ◽  
Author(s):  
U. S. Pinheiro ◽  
R.G.S. Berlinck ◽  
E. Hajdu

Two niphatids are described here: Amphimedon viridis and Pachychalina alcaloidifera sp. nov. Amphimedon viridis is a common and conspicuous species in most of the tropical western Atlantic. Pachychalina alcaloidifera sp. nov. has this far been found only in the coasts of Rio de Janeiro and São Paulo states. Both species are described on the basis of series of specimens observed alive.


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