Henry, C.A.Nautilus2010-02-152010-02-151976http://hdl.handle.net/1969.3/18792p. 73-74.The presence of living specimens of P. subovata and the echiuroid worm T. hartmani, with which it is commensal, are noted for the first time from Texas. Collections were made of 242 individuals of P. subovata and 261 of T. hartmani. Direct observations of the commensalistic behavior were not made.commensal clamsParamya subovataThalassema hartmanibiological collectionstaxonomybiogeographyArticle