Author Archives: José H. Leal

Shell of the Week: The Scorched Mussel

Brachidontes exustus (Linnaeus, 1758) reaches about 25 mm (about one inch). The shell has a “semi-triangular” outline, with a sculpture of many very fine radial ribs that form minute denticles on the inner edge of the valves. The color is yellowish-brown to dark-brown, with the inner surface a metallic purple mottled with white. Genetic studies in the past have shown that what we consider to be the Scorched Mussel may consist of more than one species. #brachidontesexustus #scorchedmussel #mytili

Shell of the Week: The Southern Ribbed Mussel

Geukensia granosissima (G.B. Sowerby III, 1914) grows to about 75 mm (about 3 inches). The shell has a straight dorsal (“upper”) margin, with the beak at the anterior one quart. The posterior end is broad and the ventral (“lower”) margin is curved inward. Relatively strong radial (departing from the beak) ribs are characteristic of this species. The periostracum is thin, light- to dark-brown.#geukensiagranosissima #southernribbedmussel #sanibel #periostracum

Black Water Beauty

This beautiful image of an Oxygyrus inflatus snail was shot by Simone Matucci off Kailua-Kona, a township on the island of Hawaii. Oxygyrus inflatus snails reach only about 10 mm (0.4 mm) in size, spending their entire lives in open water. They have very large eyes and a single swimming fin. Their transparent and flexible shells are not very calcified. The shells of open-water mollusks are usually very thin, light, but still very strong and resilient. Simone Matucci specializes in black-water ph

Flamingo Tongue, Goth Lips!

A member of the family Ovulidae, the Flamingo Tongue, Cyphoma gibbosum (Linnaeus, 1758), is one of the most attractive shallow-water gastropods from the tropical western Atlantic Ocean. Flamingo Tongues live on gorgonians (sea fans, sea whips, and relatives), feeding on the polyps of those colonial organisms. This photo, taken underwater off Long Key, in the Florida Keys, highlights its colorful mantle, foot, and head, with the remarkable black "lips"!

OctoCam Goes Live!

Our OctoCam livestream enables you to view our Giant Pacific Octopus swimming, eating, and playing in its aquarium in real-time.The OctoCam is made possible by generous donations from our Presenting Sponsor, The Sanibel Captiva Trust Company. Donations enable the Museum to provide exceptional nutrition, water quality, and veterinary care - all of which is critical to the overall health and welfare of our Giant Pacific Octopus. Check out the Octocam here!

Shell of the Week: The Green Mussel

Perna viridis (Linnaeus, 1758) has been accidentally introduced from New Zealand to the East Coast of the USA, part of the Caribbean Sea, and the Gulf of Mexico. This species grows to about 90 mm (about 3.5 inches). The ventral (“lower”) margin of the shell is straight or slightly concave, the posterior end rounded. The periostracum may be very flaky in dried shells. The shell is brown externally with green tinges at and around margins. The shell interior is nacreous, whitish or light-purple.#pe

The Raven, the Clam, and Humankind

A raven as the initiator of human life? And out of a clam? “At first he saw nothing, but as he scanned the beach again, a white flash caught his eye, and when he landed he found at his feet, half buried in the sand, a gigantic clamshell. When he looked more closely still, he saw that the shell was full of little creatures cowering in terror of his enormous shadow.” This passage, from the book “The Raven Steals the Light,” by Bill Reid and Robert Bringhurst, narrates the origin of humankind accor

Seeing Eye to Eye!

When I first saw this image, I thought of the famous “mirror scene” in the Marx’s Brothers 1933 movie “Duck Soup,” in which Harpo pretends to be Groucho’s reflection in a non-existent mirror. The routine went on for a few comical minutes, after which Grouch finally realized he was being fooled by the intruding Harpo. But in this great image by Senior Aquarist Carly Hulse we have two of our conchs, a young Queen Conch (Aliger gigas) on the left and a Milk Conch (Macrostrombus costatus) on the rig

Shell of the Week: The American Horse Mussel

Modiolus americanus (Leach, 1815) grows to about 100 mm (about 4 inches!) in parts of the its distribution range. The brown periostracum is heavy and flaky. This species resembles last week’s Shell of the Week, the Southern Mussel. They differ, however, by the usually larger size, much more “obese” shell, and presence of orange and pink hues internally and externally in the shell of the American Horse Mussel. The Southern Horse Mussel has a “skinnier” shell and generally bluish-purple color insi

Shell of the Week: The Southern Horse Mussel

Modiolus squamosus Beauperthuy, 1967 is the less uncommon among the local mussel species. Scattered valves and even complete pairs may be found on local Southwest Florida beaches after storms, particularly during the winter. The species may grow to 65 mm (about 2.6 inches), and the external shell surface is covered with a relatively thin, light-brown periostracum, which contrasts with the distinctive purplish color of the internal surfaces. Southern Horse Mussels can be distinguished from the Am