—The Permian is regarded as one of the most crucial intervals during echinoid evolution because crown group echinoids are first widely known from the Permian. New faunas provide important information regarding the diversity of echinoids during this significant interval as well as the morphological characterization of the earliest crown group and latest stem group echinoids. A new fauna from the...

A new monobasic genus of Nanophyidae, Indophyes, and a new species, I. yaromi, are described from southern India (type locality: Karnataka, Bilukoppa, 800 m, 40 km W Mudigere). The new genus is characterized by 5-segmented antennal funicle, strong sexual dimorphism of the rostrum, dentate femora, male tibiae unarmed, abdominal suture IV distinct in both sexes, male pygidium not foveate and 8 el...

Electribius relictus sp. nov. (Artematopodidae) is described from a cloud forest fragment in central Veracruz, Mexico. This species is distinguished from the other extant species known, E. crowsoni Lawrence (Mexico) and E. similis Lawrence (El Salvador), by the pronotum and elytra completely black, pronotum with margins crenulate at base, fifth abdominal ventrite with distinct median ridge, and...

Sucinolivolia torpida gen. nov. et sp. nov. (Coleoptera: Chrysomelidae: Galerucinae: Alticini) is described and illustrated from Eocene Baltic amber. The new monotypic genus is compared with fossil and extant flea-beetle genera. Sucinolivolia gen. nov. is similar to the extant Livolia Jacoby and Orthaltica Crotch, but difference include the absence of an antebasal pronotal sulcus, not crenulate...

For crenulate-shaped bays, the coastal outline assumes a specific shape related to predominant waves in area: it generally consists of tangential zone downcoast and curved portion upcoast. Many engineers have attempted derive an expression headland bay shapes that emerge when full equilibrium is reached (stable or dynamic). However, even though models for static bays exist, they are merely empi...

Although the genus Leucothoe has been reported repeatedly in the Magellan Region, the citations in the Channels and Fjords Ecoregion were either unidentified or attributed to the previously considered cosmopolitan Leucothoe spinicarpa. In this work, Leucothoe kawesqari sp. n. is described, which can be distinguished from other species of the genus in the Southern Ocean by having eyes present, e...

The isopod genus Dolicholana Bruce, 1986, previously known only from the Indo-West Pacific, is recorded for the first time from the Atlantic Ocean. A new species, Dolicholana brucei sp. nov., is described from the northeastern Brazilian coast, and is the first record of the genus Dolicholana Bruce, 1986 for the Atlantic Ocean. The material was collected from the upper part of the continental sl...

Abstract. Beach erosion at the unprotected downdrift end of a groin is common with waves approaching structure obliquely. This phenomenon has often occurred on side natural groins east coast South Korea during high in winter months. The resulting planform assumes distinctive crenulate shape maximum indentation point landward erosion. An analytical model employed to study beach rock Jeongdongjin...