All posts tagged with cephalopods

Using molecular species delimitation methods, Dr. Fernando Á. Fernández-Álvarez, a post-doc at Institut de Ciències del Mar (CSIC) in Barcelona, and his colleagues[1] found that what is currently described as Ommastrephes bartramii actually represents four different species. After examining previous descriptions in the literature, three synonymized names have been proposed for resurrection accordingly. This research comprises one of four chapters in Fernández-Álvarez’s Ph.D. thesis, and the manuscript is currently under preparation for submission to a journal.

The Biodiversity Heritage Library proved to be a vital resource for these research, allowing Fernández-Álvarez to easily locate literature about relevant synonymized names, many of which were published in the 19th century.

Here’s a word of the day for you: Teuthology. What does it mean? It’s the study of cephalopods. What are cephalopods? Well, they are a class of mollusks that include two extant subclasses: Coleoidea and Nautiloidea. Still not sure what cephalopods are? You probably know them by their more common monikers: octopuses, squid, cuttlefish, and nautiluses. There are over 800 living species of cephalopods known today. Dr. Ian G. Gleadall has been studying the biology of cephalopods (particularly octopuses) for 40 years. Dr. Gleadall (a marine biologist who works in Sendai, Japan) discovered BHL in November, 2014 while visiting the National Museum of Natural History in Paris. It has had a profound impact on his research.

Have you ever collected seashells from the sea shore? Ever wonder where they come from or the former inhabitants? Well, they come from Molluscs. Molluscs are invertebrates that include squid, octopuses, cuttlefish, nudibranchs, snails, slugs, limpets, sea hares, mussels, clams, oysters, scallops, and other lesser known creatures.

Molluscs, belong to the phylum Mollusca, a major division of invertebrates with over 100,000 species, second to Arthropods. Their ability to survive is inspiring. They can be found at all latitudes and in both tropical and temperate regions.

We’re all about mollusks in our book of the week this week, with our featured title being one brimming with some really spectacular watercolors by Comingio Merculiano. What, you might ask, is the title of this exceptional work? I Cefalopodi Viventi nel Golfo di Napoli (Sistematica) (1896). While the copy on BHL consists of only the plates from this title, the entire volume (with text) constitutes the 23rd monograph in the series Fauna and Flora of the Gulf of Naples, published by the Stazione Zoologica. This particular monograph, written by Giuseppe Jatta, presents, as the name suggests, detailed information on the Cephalopods of the Mediterranean.