top of page
Search

Shell of the Week: The Blood Ark

José H. Leal

Lunarca ovalis is an ark clam that stands out because of its heavy fur-like periostracum, or outermost shell layer. Reaching 64 mm (about 2.5 inches), its shell is inflated, oval, and is almost as long as it is high, being one of the shorter ark clams in Florida. As with most members of the family Arcidae, the shell bears a number of radial ribs. The vernacular (“common”) name of this species refers to the color of its blood, imparted by the presence of a form of hemoglobin. The latter helps improve in-body oxygen transport in anoxic (oxygen-depleted) environments. The species is found all along the Eastern Seaboard of the US, Gulf of Mexico, and the Caribbean to Brazil and Uruguay.


Lunarca ovalis. Illustration by Patricia A. Starke.

5 comentarios


Suri My
Suri My
11 mar
Me gusta

Tony Wills
Tony Wills
06 mar

Managing academic responsibilities can be overwhelming, but an online class taking service can help ease the burden. With expert assistance, you can stay on top of lectures, assignments, and exams without unnecessary stress. Whether you're juggling multiple courses or have a busy schedule, these services provide reliable support to ensure you meet deadlines and excel in your studies. Stay focused on your academic goals while letting professionals handle the workload efficiently

Me gusta

Janky Giddy
Janky Giddy
26 feb

Every path you choose in Escape Road 2 can lead to freedom or eternal loss. Do you have the courage to move forward?

Me gusta

Shawn mendis
Shawn mendis
17 feb

Managing academic workload can be challenging, especially when preparing for exams. Online exam help services provide a convenient way for students to get expert guidance, reduce stress, and improve their performance. With professional support, students can focus on understanding key concepts and managing their time effectively. Whether it's last-minute revisions or in-depth subject assistance, these services offer a reliable solution to academic pressure. Don’t let exams overwhelm you—seek the right help and achieve your academic goals with confidence!

Me gusta

Harry Kevin
Harry Kevin
17 ene

Exploration of this fascinating marine species, showcasing its unique characteristics and habitat. For students working on academic projects like marine biology assignments, services like professional assignment writing help can be invaluable. My friend recently used this service two days ago and found it incredibly helpful in crafting a detailed and well-researched paper. Such assistance ensures high-quality content tailored to academic standards. Trust professional assignment writing help to make complex topics more manageable and impactful.

Me gusta
bottom of page