Dear Editor, Reticulate pigmentary disorders (RPD) is a term used to classify a spectrum of several acquired and congenital disorders. Different clinical features can be present, including a reticular pattern and a freckle-like pattern with hyperor hypo-pigmented macules (1). Dowling-Degos disease (DDD), an autosomal dominant genodermatosis, is the main type of RPD (2). Clinically, DDD presents...

Figure 2. Slope Streaks in the ADV; Left: digitate streaks, image width 220 m; Right: parallel streaks and effect of local topography at lower left; image width 260 m. Slope is 20-30, top to bottom. Slope streaks in the Antarctic Dry Valleys: Characteristics, candidate formation mechanisms, and implications for slope streak formation in the Martian environment J. W. Head, D. R. Marchant, J. L. ...

In the title compound, C(11)H(10)N(2)O(2), the benzene ring faces towards one of the pyrimidine N atoms, and is almost orthogonal to the plane through the pyrimidine ring [dihedral angle = 84.40 (14)°]. In the crystal, the presence of C-H⋯π and π-π [centroid-centroid separation = 3.7658 (18) Å] inter-actions leads to a supra-molecular array in the ac plane. The layers thus formed inter-digitate...

The Ni atom in the title linear supra-molecular polymer, [Ni(C(6)H(14)O(2)PS(2))(2)(C(12)H(10)N(4))](n), exists within a trans-N(2)S(4) octa-hedral donor set defined by two symmetrically coordinating dithio-phosphate ligands and pyridine N atoms derived from two bridging bis-(4-pyridylmethyl-ene)diazane ligands. The Ni atom lies on a centre of inversion and the bis-(4-pyridylmethyl-ene)diazane ...

The Neotropical genus Atanatolica includes 17 species distributed from Costa Rica to Brazil, but only two, A. brasiliana and A. flinti, have been recorded from Brazil, both occurring in Rio de Janeiro and São Paulo States. A new species, Atanatolica bonita n. sp., is described and illustrated based on males and females from the Atlantic Forest in Bahia State in northeastern Brazil. The new spec...

A new species of Amphoropsyche Holzenthal is described from Ecuador. It is similar to a group of species with dorsomesal processes on the preanal appendages (i.e., Amphoropsyche woodruffi Flint & Sykora, Amphoropsyche refugia Holzenthal, and Amphoropsyche aragua Holzenthal), but can be distinguished from these and other members of the genus by the short, digitate dorsomesal processes on the pre...

A new species of leucosiid crab of the genus Coleusia Galil, 2006, is described from South and Southeast Asia. Coleusia huilianae n. sp. is distinguished from the superficially similar C. urania (Herbst, 1801) in the shape of the apical process of the first male gonopod which is digitate and curved laterally in the former (beak-like and curved interiorly in the latter); possessing smaller and s...

Abstract Digitate shallow-water deltas are commonly found in modern lakes and bays, as well within cratonic petroliferous basins. They develop one or multiple sinuous finger-like sands (i.e., bar fingers), including high-RSI (sinuosity ratio of distributary channel finger ≥1) low-RSI (RSI < 1) types. Bar fingers consist four types subenvironments, that is, channels, point bars, mouth lev...

We describe and illustrate two new species of Atanatolica from Brazil and Peru, representing the first record of the genus from Peru and the first record of the genus from Ceará state, Brazil. Atanatolica nordestina sp. nov. is recognized by short inferior appendages, with their basal portions subquadrangular, in ventral view; and by tergum X without the typical digitate apical processes, but w...

Ophryotrocha shieldsi, sp. nov. is described from Macquarie Harbour, Tasmania, Australia, where it occurs in high densities beneath the sea cages of fish farms. SCUBA and ROV underwater observations revealed closely spaced mounds of aggregations of the new species. It is closely related to O. lobifera Oug, a species reported from fish farms and whale-falls in the North Sea, from which it can be...