
Gracilechinus is a genus of sea urchins in the family Echinidae.
GENUS
via GBIF
Gracilechinus is a genus of sea urchins in the family Echinidae.
== Description and characteristics == The species in this genus are regular sea urchins, with a rounded test, bearing the anus at the top and the mouth at the bottom. They are extremely similar to species in the genus Echinus, but are differentiated by a primary tubercle on every interambulacral plate.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).