Themiste Gray

Themiste Gray Diagnosis: Introvert shorter than trunk. Body wall with continuous muscle layers. Tentacles basically surrounding mouth but extending along branching stem like outgrowths as the animal grows. With or without hooks. Two large introvert retractor muscles; contractile vessel with distinct villi or tubules. Spindle muscle adheres closely to rectum and is not attached posteriorly. Two nephridia. Animals small to large (adults 4���400 mm long).
Published as part of Cutler, Edward B., Schulze, Anja & Dean, Harlan K., 2004, Zealand species, pp. 1-19 in Zootaxa 525 on page 12, DOI: 10.5281/zenodo.158002