Zootaxa 1841: 65–68 (2008 )
A new species of Tethycometes Sarà, 1994 (Porifera: Hadromerida: Tethyidae) from Singapore
SWEE CHENG LIM & KOH SIANG TAN
Tropical Marine Science Institute, National University of Singapore, 14 Kent Ridge Road, Singapore 119223.
This paper describes a new species of Tethycometes dredged from waters less than 15 m deep off the coast of Singapore Island, Southeast Asia. With a long stalk eight times the length of its ovoid body, it is the second species to be assigned to the recently erected genus Tethycometes. It differs from the type species T. sibogae Sarà, 1994 in the presence of oxyspherasters which form a thin but distinct cortex. It also differs from all other stalked tethyids in having a partially detached tangential skeleton surrounding the stalk, as well as in possessing rooting processes emanating from the basal half of the stalk.