Otoliths are small stone located in fish inner ears and characterised by an accretionnary growth. They act as a biological archive and are of much use in marine biology and ecology. In this article a computer vision framework is presented which recover the successive shapes of the otolith and the significant ridges and valleys from a 2D grayscale image. Seeing vision processes as complex system...

Laetesia raveni n. sp. (Araneae, Linyphiidae), is described based on specimens collected in New South Wales and Queensland (Australia). This new linyphiid species is of bright green colour, and it seems to have a preference to build its webs almost exclusively on two plant species, namely Calamus muelleri Wendland (Arecaceae) and Solanum inaequilaterum Domin, (Solanaceae), both of them densely ...

The nematode Philometra rubra (Leidy, 1856) (Philometridae) is redescribed from subgravid females found in the abdominal cavity of the fish Morone saxatilis (Walbaum) from South Carolina, USA in November 2008. The species is characterized by the presence of 14 cephalic papillae arranged in two circles, a relatively long oesophagus with a distinct anterior inflation, and well-developed papilla-l...

An eccrine poroma is a benign neoplasm that originates from the intraepidermal ductal portion of the eccrine sweat duct. Although eccrine poromas are most commonly found on the sole or side of the foot, eccrine poromas have been observed on other areas of the skin, such as the scalp, neck, and chest. We report an interesting case of an eccrine poroma, which presented as a 1×1 cm protruding dome...

Original descriptions and illustrations of the first instar larva of Megalostomis (Heterostomis) lacordairei Lacordaire and of Coscinoptera argentina Burmeister (Clytrini: Megalostomina) are provided. Based on the available information on first instar larvae, the tribe Clytrini is diagnosed. Unique of the larvae of clytrini is the antennal sensorium dome-like. Characters in common between Clytr...

Using muon spin spectroscopy we have found that, for both NaxCoO2 (0.6 x 0.9) and 3and 4-layer cobaltites, a common low temperature magnetic state (which in some cases is manifest as an incommensurate spin density wave) forms in the CoO2 planes. Here we summarize those results and report an almost dome-shaped relation <_ <_ between the transition temperature into the low-T magnetic state and th...

A 65-year-old man presented with an asymptomatic lesion on the left parietal scalp of 6 months’ duration. Three years prior, a cylindroma on the same area was excised by a general surgeon. Physical examination revealed a solitary 6 mm salmon-pink, firm, dome-shaped papule on the left parietal scalp (Figure 1). Dermatoscopic evaluation showed arborizing telangiectasia and several scattered white...

The term 'angiokeratoma' includes a wide range of dermatological conditions of hyperkeratotic vascular disorders with a similar histologic combination of hyperkeratosis and superficial dermal vascular ectasia. Angiokeratomas can be classified into localized and systemic forms. Angiokeratoma of Fordyce (AKF) is a localized form of angiokeratoma, clinically characterized by 1- to 6-mm, black, blu...

Palisaded encapsulated neuroma is a rare, benign cutaneous tumor. It most commonly presents as a solitary, flesh-colored, dome-shaped nodule affecting the face. However, albeit rarely, palisaded encapsulated neuroma may also appear on the trunk, genitals, or extremities. We describe the clinical and pathologic findings of a male patient who presented with a palisaded encapsulated neuroma on his...

© 2009 The Authors. doi: 10.2340/00015555-0685 Journal Compilation © 2009 Acta Dermato-Venereologica. ISSN 0001-5555 Sir, Acquired reactive perforating collagenosis (ARPC) is associated with diabetes mellitus and/or chronic renal failure. The disease lesions consist of many dome-shaped nodules, which have a central umbilication containing firm keratotic plugs. Histologically, transepidermal eli...