A short framework-III (mini-M-2) conotoxin from the venom of a vermivorous species, Conus archon, inhibits human neuronal nicotinic acetylcholine receptors.

The venoms of Conus snails contain neuroactive peptides named conotoxins (CTXs). Some CTXs are nicotinic acetylcholine receptor (nAChRs) antagonists. nAChRs modulate the release of neurotransmitters and are implicated in several pathophysiologies.

First detection of an ocellate octopus in the Revillagigedos ecoregion, a biodiversity hotspot located in the Tropical East Pacific Province.

The biodiversity of mollusks, particularly cephalopods, has not been exhaustively determined in the Revillagigedos ecoregion, which is a biodiversity hotspot for several marine groups located in the Tropical East Pacific Province. In our study, we detected and examined ocellate octopuses from Socorro and Clarion Islands, and determined their identity using morphological criteria and molecular data from two mitochondrial genes (COIII and COI). The taxon identified was , a species considered endemic to the Galapagos Archipelago.

First report of partial albinism in the blue lobster (Bouvier, 1895) from the Mexican Pacific (Crustacea, Decapoda, Palinuridae).

The first case of partial albinism registered in the Mexican Pacific by the blue lobster is presented. The specimen was collected on the southern coast of Jalisco know as Punta "El Estrecho". It constitutes one of the few registered cases of albinism in invertebrates from the Eastern Tropical Pacific.