Two related perciform fish species of the subfamily Monotaxinae (Sparoidea: Lethrinidae) Gymnocranius superciliosus sp. nov. and Gymnocranius satoi sp. nov. are described from specimens and tissue samples from the Coral Sea and adjacent regions. G. superciliosus sp. nov. is distinct from all other known Gymnocranius spp. by the following combination of characters: body elongated (depth 2.7-3.1 ...

Caudal-fin-based swimming is the primary form of locomotion in most fishes. As a result, many species have developed specializations to enhance performance during steady swimming. Specializations that enable high swimming speeds to be maintained for long periods of time include: a streamlined body, high-aspect-ratio (winglike) caudal fin, a shallow caudal peduncle, and high proportions of slow-...

Garra robertsi is described from specimens collected from the Sungai Bongan and Tempassuk rivers in Sabah, Borneo. The species is differentiated from G. borneensis, its only congener on the island of Borneo, in having five (versus four) transverse scale rows above lateral line, the first branched dorsal-fin ray extending beyond the posterior-most extent of any other part of the dorsal fin when ...

Transmembrane protein 184A (TMEM184A) was recently identified as the heparin receptor in vascular cells. Heparin binds specifically to TMEM184A and induces anti-proliferative signaling in vitro. Though it is highly conserved, the physiological function of TMEM184A remains unknown. The objective of this study was to investigate the expression and effects on vascular regeneration of TMEM184A usin...

A new nemacheilid loach, Schistura obliquofascia, is described from Kalsa, a stream near Chanfi, tributary of Gola River, Ganga basin in Uttarakhand, India. The new species is readily distinguished from congeners by the following combination of characters: 12–14 oblique olivaceous dark bars on the body and three rows of black spots on the dorsal fin; lateral line complete with 104–112 pores, do...

Urodele amphibians and teleost fish regenerate amputated body parts via a process called epimorphic regeneration. A hallmark of this phenomenon is the reactivation of silenced developmental regulatory genes that previously functioned during embryonic patterning. We demonstrate that histone modifications silence promoters of numerous genes involved in zebrafish caudal fin regeneration. Silenced ...

The most prominent and dramatic example of regeneration in vertebrates is the complete reconstitution of amphibian limbs and fish fins by epimorphic regeneration. Research into the molecular regulation of this fascinating biological problem is of high medical interest due to the potential application in replacing old or damaged tissues in humans. Retinoic acid (RA), a small lipophilic molecule ...

Caudal fin regeneration is characterized by a proliferation boost in the mesenchymal blastema that is controlled precisely in time and space. This allows a gradual and robust restoration of original fin size. However, how this is established and regulated is not well understood. Here, we report that Yap, the Hippo pathway effector, is a chief player in this process: functionally manipulating Ya...

Many mutants that disrupt zebrafish embryonic pigment pattern have been isolated, and subsequent cloning of the mutated genes causing these phenotypes has contributed to our understanding of pigment cell development. However, few mutants have been identified that specifically affect development of the adult pigment pattern. Through a mutant screen for adult pigment pattern phenotypes, we identi...

The most prominent and dramatic example of regeneration in vertebrates is the complete reconstitution of amphibian limbs and fish fins by epimorphic regeneration. Research into the molecular regulation of this fascinating biological problem is of high medical interest due to the potential application in replacing old or damaged tissues in humans. Retinoic acid (RA), a small lipophilic molecule ...