The spelling of "hymenocaris" is based on its etymology, which derives from the Greek words "hymen" meaning "membrane" and "karis" meaning "shrimp". The correct pronunciation of this word is /haɪˈmɛnəʊˌkærɪs/, with the stress on the second syllable. The "h" is pronounced, followed by a long "i" sound in the first syllable. The second syllable features a schwa sound followed by a short "e" sound, while the final syllable is stressed and pronounced like "karis" with a rolled "r" sound.
Hymenocaris is a term used to refer to a genus of extinct arthropods that lived during the Cambrian period, approximately 525 million years ago. These organisms were part of the early marine fauna and are considered important in the study of early arthropod evolution.
The name "hymenocaris" is derived from the Greek words "hymen," meaning membrane or thin skin, and "caris," meaning shrimp or crayfish. This name alludes to the arthropod's characteristic bivalved carapace that covers the front portion of its body.
Hymenocaris had a relatively small size, ranging from a few centimeters to several inches in length. The body was divided into distinct segments, including a head region, a thorax, and an abdomen. It possessed a pair of large, compound eyes, multiple pairs of appendages, and a long tail spine.
These organisms were likely predatory, feeding on smaller marine organisms. They inhabited shallow marine environments, such as oceans and seas, and had a wide geographic distribution.
Hymenocaris fossils have been discovered in various locations around the world, including North America, Europe, and Australia. These fossils have provided valuable insights into the early evolution and diversification of arthropods, contributing to our understanding of the ancient marine ecosystem.
In geol., a small shrimplike crustacean.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "hymenocaris" is derived from the Greek words "hymen" meaning "membrane" and "karis" meaning "shrimp". "Hymenocaris" is the name of an extinct genus of small shrimp-like arthropods that lived during the Cambrian period. The name likely refers to a distinguishing feature of the animal's anatomy, potentially a membranous structure.