Staff directory
Emmanuel Vreven
Biology
Vertebrates
Vertebrates
Publication details
Nagy, B. & Vreven, E. 2018. ‘Micropanchax petnehazyi, a new species of lampeye cyprinodontiform from the Lufira drainage, Democratic Republic of Congo (Cyprinodontiformes: Poeciliidae)’. Ichthyological Exploration of Freshwaters 28 : 97-192. München, Germany : Verlag Dr. Friedrich Pfeil. ISSN: 0936-9902. (PR).
Article in a scientific Journal / Article in a Journal
Micropanchax petnehazyi, new species, is described from ephemeral pools of the Tshipokokolo River basin, a right
bank tributary of the Upper Lufira drainage in the Democratic Republic of Congo. It is identified as most similar
to M. hutereaui. Both species share the overall diagnostic characters of similar male colour pattern characterised
by the presence of dark transverse markings on the median fins; reticulate markings on the side; as well as
cephalic sensory system of both sexes characterised by supraorbital canal in two short, discontinuous grooves,
with exposed neuromasts; and postorbital and preopercular sensory systems tubular with pores. Micropanchax
petnehazyi is distinguished from M. hutereaui by the following unique combination of characters in males: dorsal
and anal fins with faint brown stripes perpendicular to fin rays (vs. curved stripes); anal fin with a faint brown
margin and without a light submarginal band (vs. with dark brown margin and with light submarginal band);
caudal fin with irregular vertical markings forming a reticulate pattern (vs. narrow vertical bands); as well as for
both sexes preorbital sensory system in a shallow canal with three exposed neuromasts (vs. tubular with three
pores); mandibular sensory system in open groove with small exposed neuromasts (vs. tubular with pores);
smaller body depth at pelvic fin origin 25.3-28.7 % SL (vs. 30.0-32.3); smaller interorbital width 34-40 % HL (vs.
47-51); larger postorbital length 45-46 % HL (vs. 38-43); smaller suborbital depth 11-14 % HL (vs. 21-25); and
larger caudal peduncle length 1.4 times of its depth (vs. 1.0-1.1).