A new species of Barbatula from the headwaters of the Bulgan River in western Mongolia (Teleostei: Nemacheilidae)

Zootaxa ◽  
2018 ◽  
Vol 4407 (2) ◽  
pp. 267
Author(s):  
ARTEM M. PROKOFIEV

Barbatula karabanowi, new species, is described from the upper Bulgan River drainage in Mongolia. It is most similar to B. dsapchynensis from the Zavhan River basin (Lake Valley, Mongolia). The new species is distinguished from this and all other species of Barbatula in Asia by a combination of characters, none of them unique: nostrils widely spaced; snout broad, ratio between maximum head width and width of snout at anterior nare 1.4–1.6; lips smooth, upper lip with a short incision; lower lip with short, well developed lateral lobes, mental lobes oval, lacking conical protrusions; scales absent or isolated scales present on the flank between dorsal- and caudal-fin bases; 42–44 vertebrae (usually 43); 75–88 lateral line pores on flank; paired fins with rounded tips; pigmentation pattern with densely set and partially fused irregularly shaped blotches and streaks. Barbatula karabanowi occurs in syntopy with B. cf. altayensis. It is distinguished from this species by having widely separated nares (vs. closely-set), details in the mouth structure, few or no scales (vs. squamation well developed), less vertebrae and lateral line pores (42–44 and 75–88 vs. 44–45 and 89–105, respectively), “non-muscular” cheeks in both sexes (vs. thickened, especially in the males) and details in colour pattern. These two species were found to prey on different food items and were the only fish taxa found in the studied part of the river. 

Zootaxa ◽  
2013 ◽  
Vol 3630 (1) ◽  
pp. 191-197
Author(s):  
BARRY C. RUSSELL ◽  
DENIS TWEDDLE

A new species of threadfin bream, Nemipterus flavomandibularis, from the Western Indian Ocean is described and figured. The new species appears most closely related to N. bipunctatus (Valenciennes), but differs principally in colour pattern: N. flavomandibularis is distinct from N. bipunctatus in having two yellow bands on the snout, the upper lip narrowly edged with yellow; and lower lip and chin beneath lip yellow, this colour extending as a narrow band posteriorly to lower margin of opercle. Also, in N. flavomandibularus the scale rows below the lateral line are more or less horizontal (versus distinctly ascending anteriorly in N. bipunctatus), and the maxillary reaches to between level of posterior nostril and anterior margin of eye (versus reaching to below the anterior half of the eye in N. bipunctatus).


Zootaxa ◽  
2017 ◽  
Vol 4247 (4) ◽  
pp. 378 ◽  
Author(s):  
JÖRG FREYHOF ◽  
MÜFİT ÖZULUĞ

Oxynoemacheilus hazarensis, new species, from Lake Hazar in the Turkish Tigris drainage, is distinguished from other Oxynoemacheilus in the Tigris drainage by having the combination of a slightly emarginate caudal fin, no suborbital groove in males, an incomplete lateral line, no scales on the back and flank in front of the anus, the maxillary barbel reaching beyond the middle of the eye, an incision in the middle of the upper lip, and the colour pattern on the flank mottled, not interrupted by an unpigmented zone along the lateral line. Oxynoemacheilus euphraticus from the Euphrates and Tigris drainages is a valid species: it is discussed and re-diagnosed against O. argyrogramma. 


2011 ◽  
Vol 91 (6) ◽  
pp. 1231-1235 ◽  
Author(s):  
Jesús Matallanas

Santelmoais diagnosed by the following characters: anterior portion of frontals fused; scapular foramen open; anterior ceratohyal–posterior ceratohyal (=epihyal) articulation interdigitating; cranium narrowed; supratemporal commissure and occipital pores absent; intercalar reaching the prootic; ascending rami of the parasphenoid wing high; palatal arch well developed; posterior hyomandibular ramus short; post-temporal ventral ramus well developed; six branchiostegal rays; vertebrae asymmetrical; pelvic fin rays ensheathed; scales, lateral line, pyloric caeca, palatine and vomerine teeth present. A new species ofSantelmoa, Santelmoa elviraesp. nov., is described on the basis of four specimens collected from the Bellingshausen Sea, Southern Ocean, at a depth of 1837 m. The new species can be distinguished fromSantelmoa carmenae, the type species of the genus and the sole knownSantelmoaspecies, by the following characters: mouth inferior; vertical folds on posterior end of the upper lip and on the lower lip lobe; oral valve nearly reaching the anterior edge of vomer; two posterior nasal pores; lateral line double with ventral and medio-lateral branches; single row of palatine teeth; dorsal fin rays 108–111; anal fin rays 93–94; pectoral fin rays 18–19 and vertebrae asymmetrical, 26–27 + 90–93 = 116–119.


Phytotaxa ◽  
2020 ◽  
Vol 433 (1) ◽  
pp. 1-8
Author(s):  
BRENDA Y. BEDOLLA-GARCÍA ◽  
SERGIO ZAMUDIO ◽  
HUGO A. CASTILLO-GÓMEZ

Salvia huastecana is described and illustrated as a new species. It is known from the municipality of Xilitla, San Luis Potosí, Mexico. This taxon belongs to Salvia sect. Angulatae, is similar to S. albiflora and S. roscida but it can be distinguished by a higher number of flowers per verticillaster (9−12), longer caducous bracts with long caudate apex, hirsute calyx with erect trichomes and white corolla, sometimes with the upper lip and margins of the lateral lobes of the lower lip light blue stained. Photographs of living plants and the illustration of the new species are provided.


Zootaxa ◽  
2010 ◽  
Vol 2548 (1) ◽  
pp. 1 ◽  
Author(s):  
ANDREAS R. DUNZ ◽  
ULRICH K. SCHLIEWEN

A new species of the genus Tilapia Smith, 1840 is described from the Pra River drainage in Ghana. Tilapia pra sp. nov. is distinguished from all Tilapia species except T. sparrmanii, T. ruweti, T. guinasana, T. baloni, T. brevimanus, T. mariae, T. cabrae and T. busumana in having bicuspid posterior pharyngeal teeth on the lower pharyngeal jaw. It differs from T. baloni and T. ruweti in having more gill rakers on the first ceratobranchial (lower) gill-arch (10–12 vs. 6–9), from T. guinasana in having a higher number of upper lateral line scales (18–22 vs. 14–17) and from T. sparrmanii in a combination of a higher number of upper lateral line scales (18–22 vs. 14–19), a shorter anal fin base (15.0–18.6% vs. 18.0–23.8% of SL) and a lower number of vertical stripes (6–7 vs. 8–9). It differs from T. mariae, T. cabrae and T. brevimanus in having robust, non-spatulate outer row jaw teeth (vs. gracile spatulate teeth) and from T. busumana in having a longer last dorsal-fin spine (16.2–21.3% vs. 11.6–14.9% of SL), and a smaller lower lip length (8.0–10.7% vs. 9.6–13.9% of SL) and lower jaw length (9.9–13.6% vs. 10.5–15.2% of SL). In addition, T. pra sp. nov. differs from T. busumana in ground coloration. T. pra sp. nov. possesses a light brown to greyish dorsum and a beige to yellow ventral area vs. a bluish-purple to blackish dorsum and darker on underside of head and body of T. busumana.


Phytotaxa ◽  
2014 ◽  
Vol 156 (2) ◽  
pp. 74
Author(s):  
Piero G. Delprete

Utricularia julianae, a new species from the savannas near the Oyapock River, French Guiana, is here described and illustrated. The new species is most similar to U. tenuissima, from which it can be easily distinguished by the leaves and stolons apparently lacking (vs. leaves few and on the stolons, the stolons few or lacking, in U. tenuissima), traps ellipsoid, 0.3 mm long, with 4–5 capilliform appendages (vs. ovoid, 0.3–0.8 mm long, with 1 dorsal and 2 ventral slender appendages), corolla upper lip limb deeply bilobed (vs. broadly ovate to round), spur saccate, perpendicular to the lower lip (vs. spur narrowly cylindrical, parallel to the lower lip), among other characters. In addition, the capsules of U. julianae and U. tenuissima are unique within the genus, by being very narrowly ovoid, dehiscing by a single longitudinal slit, and with a placenta projecting outside the dehisced capsule. On the basis of their numerous morphological similarities and their peculiar capsule shape and dehiscence, the new species is tentatively placed within sect. Martinia, which P. Taylor described to accommodate U. tenuissima.


Zootaxa ◽  
2020 ◽  
Vol 4768 (2) ◽  
pp. 249-263 ◽  
Author(s):  
HENRY D. AGUDELO-ZAMORA ◽  
ARMANDO ORTEGA-LARA ◽  
DONALD C. B. TAPHORN

Characidium chancoense new species, is described from the transandean upper Río Cauca drainage in Colombia. It can be distinguished from all congeners by its pigmentation pattern that consists of 7–12 vertical bars, most of which are cuneate-shaped with the vertex ending on or just below the lateral-line scale series, except for the last 1–4, which are dorsoventrally elongate rectangular bars that extend well below the lateral line. Characidium chancoense is sympatric with C. caucanum Eigenmann, C. phoxocephalum Eigenmann, C. cf. zebra Eigenmann and C. cf. boavistae Steindachner. Unlike C. caucanum and C. cf. boavistae, C. chancoense does not appear to be sexually dimorphic. 


Zootaxa ◽  
2020 ◽  
Vol 4859 (2) ◽  
pp. 293-299
Author(s):  
SIDDHARTHASANKAR BANERJEE ◽  
SUJAN KUMAR SOU

A new cosmocercid nematode species, Cosmocerca asansolensis sp. nov. (Ascaridida, Cosmocercidae) is described from an Indian bullfrog, Hoplobatrachus crassus (Jerdon, 1853), from Asansol town, Paschim Bardhaman district, West Bengal, India. This species is characterized by the presence of five pairs of plectanes supporting preanal papillae, absence of somatic papillae in females, and having one pair large postanal papillae, a single papilla on the upper lip of cloaca, a single papilla on the lower lip of cloaca and one pair adanal papillae in males and one pair postanal papillae in females. Spicules of the present species are equal, moderately sclerotized, knobbed and wide proximal end gradually tapering to a fine point distally. The gubernaculum is well sclerotized and Y-shaped. Cosmocerca asansolensis sp. nov. represents the 33rd species assigned to the genus, 8th from Oriental region and 6th species from India. 


2016 ◽  
Vol 8 (3) ◽  
pp. 8583 ◽  
Author(s):  
J.D. Marcus Knight

Channa pardalis, a new species of snakehead, is described from Khasi Hills, Meghalaya, northeastern India.  This species can be distinguished from its congeners by a unique colour pattern consisting of numerous large black spots on the post-orbital region of the head, opercle and body; a broad white and black margin to the dorsal, anal and caudal fins; 36–37 dorsal fin rays; 24–25 anal fin rays; 44–45 pored scales on the body and two scales on the caudal fin base; 4½ scales above lateral line and 6½ scales below lateral line; 45 vertebrae and the palatine with two rows of teeth: outer row with numerous minute teeth and inner row with short, stout inward curved teeth.  


Zootaxa ◽  
2021 ◽  
Vol 4933 (2) ◽  
pp. 277-288
Author(s):  
MAURICE KOTTELAT

‘Nemacheilus’ argyrogaster, new species, is described from the Xe Kong, Mekong drainage, in Attapeu and Xe Kong provinces, southern Laos. It is distinguished from all other Nemacheilidae in Southeast Asia by its unique colour pattern made of a bold black midlateral stripe separating the yellowish brown dorsal part of the body from the silvery whitish ventral part and a middorsal row of 14–19 thin saddles. Besides, the male has a globulous suborbital flap with tubercles along its free, posterior edge, and the pectoral fin with thickened anterior ray and branched rays 1–4 and unculiferous pads behind them covered by small tubercles; lips thin, lower lip continuous with a narrow median notch. It was found in moderate to fast flowing water, over pebble to stone bottom. ‘Nemacheilus’ argyrogaster, was earlier misidentified as N. longistriatus; it is provisionally placed in the genus Nemacheilus. 


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