Schistura syngkai, a new stone loach, is described from the Twahdidoh Stream of Wahblei River (Surma-Meghna drainage) in Meghalaya, northeast India. It unique among its Indian congeners having prominent dark-brown to blackish mid-lateral stripe about an eye diameter or more width, overlain on 12–18 vertically-elongate black blotches golden-brown amber body. Additionally, species possesses incomplete lateral line and slightly emarginate caudal fin, exhibits no apparent sexual dimorphism.

Schistura larketensis, a new species of cavernicolous loach, is described from Khung, limestone cave in Meghalaya, India. The differs papulifera, its only troglomorphic congener northeast India, having smooth ventral surface the head, presence small cylindrical axillary pelvic lobe, and three pores supratemporal canal cephalic lateral-line system. Apart these differences, can be immediately distinguished all other Brahmaputra River neighboring basins by complete absence (or vestigial presence) eyes.

The study of the mitogenome Neolissochilus pnar, world's largest cave fish, uncovered its structural features, gene content and evolutionary dynamics within mahseer. Its is 16,440 base pairs, resembling those teleost species exhibits a high degree conservation in genes arrangement. It comprises 37 mitochondrial genes, including 13 protein-coding (PCGs), 22 tRNA (tRNAs), 2 rRNA (rRNAs) control region. Notably, distribution on L- H-strands consistent with that typical teleost. reveals lengths...

Abstract Integrative taxonomy reveals a new troglophilic species of Schistura , from cave‐dwelling population inhabiting stream draining (Barak–Surma–Meghna drainage) through the Krem (=cave) Mawjymbuin in East Khasi Hills Meghalaya. Morphologically, is easily distinguished its congeners having combination characters, including unique colour pattern form 14–20 greyish black to faint bars overimposed midlateral stripe on brown pale beige (yellowish green life); pre‐dorsal thin, numerous,...

Two new feather mite species of the genus Trouessartia Canestrini are described from laughingthrushes (Passeriformes: Leiothrichidae) captured in Meghalaya (India): cyanouropterae sp. n. Actinodura cyanouroptera (Hodgson) and alcippeae Alcippe nipalensis (Hodgson). It is first time when leiothrichids.

Two new feather mite species of the genus Trouessartia Canestrini are described from birds captured in Meghalaya (India): longidenticulata Constantinescu sp. n. Pycnonotus cafer (Linnaeus) (Passeriformes, Pycnonotidae) and dicruri Dicrurus aeneus (Vieillot) Dicruridae). In Trouessartia, males T. show a unique character state having lamellae opisthosomal lobes with long sharp denticles. Both sexes differ closely related delicatula Gaud, 1952 by smaller body size (T. 420–452 long, females...

The paper describes two new species of feather mites collected from the blue-throated blue flycatcher Cyornis rubeculoides (Vigors) (Passeriformes: Muscicapidae) in India (Meghalaya): Trouessartia kharkhanensis Constantinescu et al. sp. nov. (Trouessartiidae) and Proterothrix cyornissimilis (Proctophyllodidae: Pterodectinae). Both sexes T. differ closest species, rubecula Jablonska, 1968 by having setae si c2 lanceolate c3 sRIII with acute apex. In males adanal apodemes have a hook-like...

Otomops wroughtoni is an extremely rare molossid bat, known so far by a single breeding colony in southwestern India and two individuals recorded Meghalaya Cambodia. We report here the discovery of three new roosts located large karstic caves Jaintia Hills, southeastern Meghalaya. Visual counts indicate that at least 90 occupied these February 2014, which doubles world population this species. The populations Wroughton's Free-tailed Bats from Hills have considerable value for conservation...

A new species of nemacheilid loach, Schistura sonarengaensis sp. nov., is described from three cave-dwelling populations (Barak-Surma-Meghna drainage) in the South Garo Hills district Meghalaya, India. The possesses prominent eyes but easily distinguished all congeners genus Barak-Surma-Meghna and adjacent rivers drainages northeast Indian (except S. syngkai) having 13-26 vertically elongated to circular mid-lateral black blotches (brownish life) overlayered on a grayish-black stripe dull...

A new species of the feather mite genus Proterothrix (Proctophyllodidae: Pterodectinae) is described from Large NiltavaNiltava grandis (Blyth) (Passeriformes, Muscicapidae) in northeast India (Meghalaya, Jaintia Hills, Shnongrim village). chachulae Constantinescu, sp. n. differs all known by having males aedeagus with bilobate tip. The morphological description supplemented molecular characterisation a fragment f near 5` terminus mitochondrial COI gene.

The paper describes two new species of feather mites collected on Psilopogon virens (Boddaert) (Piciformes: Megalaimidae) in India (Meghalaya): Megalaimobius massarae sp. nov. (Analgoidea: Pteronyssidae) and Picalgoides arbenzi (Psoroptoidea: Psoroptoididae). Males M. differ from the other three genus by shape transventral sclerite which is much deeper concave. female has external copulatory tub with an acute apex (this structure a truncated females species). closest P. capitonis Černý, 1974...

The present study provides the first detailed early embryonic development of Shalyni barb, Pethia shalynius (Yazdani & Talukdar, 1975), a vulnerable cyprinid fish occurring in streams and lentic waters Meghalaya, northeast India. Induced spawning by synthetic hormone injection May 2019 was conducted to pair mature female male P. under controlled conditions well-aerated aquarium. Fertilized eggs were spherical, 0.75–0.80 mm (approx.) diameter, transparent, unpigmented non-adhesive. A total 22...

Two new species of feather mites are described from the Rusty-capped Fulvetta Schoeniparus dubius (Hume) (Passeriformes: Pellorneidae) in India (Meghalaya): Proterothrix manolelii Constantinescu sp. n. (Proctophyllodidae: Pterodectinae) and Trouessartia asiatica (Trouessartiidae). belongs to paradoxornis complex (wolffi group) having, males, seta e tarsus I lanceolate aedeagus long whip-shaped. Among other six complex, this appears be closest P. alcippeae Mironov, Literak, Hung & Capek,...

The paper describes two new species of feather mites collected from some flycatchers (Passeriformes: Muscicapidae) in Meghalaya, India: Trouessartia thalassina sp. n. (Trouessartiidae) the Verditer Flycatcher, Eumyias thalassinus (Swainson), and Proterothrix sibillae (Proctophyllodidae: Pterodectinae) Small Niltava, Niltava macgrigoriae (Burton). T. is most similar to cyanoptilae Mironov, 2023 having, both sexes, setae d1 absent lateral margins hysteronotal shield shallowly concave. In males...

Two new feather mite species of the genus Montesauria Oudemans, 1905, collected from thrushes (Turdidae) in India, are described: hernandesi sp. n. Turdus dissimilis Blyth, 1847 and M. caerulea Myophonus caeruleus (Scopoli, 1786). Both belong to merulae group, being morphologically closest other two genus, previously described birds family Turdidae Asia (Japan): sibirica Kuroki, Nagahori Mironov, 2006 aurea 2006, respectively. The most clearly differ those Japan by dorsal shield...

FIGURE 6. Lateral view of head showing gradual reduction and loss eyes (black arrows) with increasing size in Schistura larketensis; a, paratype GUMF 0262/2, 45.1 mm SL; b, holotype, 0261, 54.5 c, 0263/2, 63.1 d, paratype, 68.1 SL.Scale bar 1 mm; e,graphical representation decreasing eye diameter (ED) respect to increase standard length (SL).