Names of hydroids (Cnidaria, Hydrozoa) established by Charles McLean Fraser (1872 - 1946), excluding those from Allan Hancock Expeditions Author Calder, Dale R. Author Choong, Henry H. C. text Zootaxa 2018 2018-10-02 4487 1 1 83 journal article 29136 10.11646/zootaxa.4487.1.1 939f52d6-d58b-4a22-8aec-dd5c6a591067 1175-5326 1456161 524B23B9-8EAA-4BD6-8937-A1B8F1C057B9 Tubularia crassa Fraser, 1941b Tubularia crassa Fraser, 1941b : 81 , pl. 14, figs. 5a, b. Syntypes . USNM 22746 : USA , Massachusetts , off Martha’s Vineyard , 40°49’30”N , 70°47’W , R/ V Fish Hawk Sta. 988, 0 7 September 1881 , 55 m, rake dredge, two polyps, labelled “ type ”; ethanol. Lectotype , by present designation. USNM 22746 : USA , Massachusetts , off Martha’s Vineyard , 40°49’30”N , 70°47’W , R/ V Fish Hawk Sta. 988, 0 7 September 1881 , 55 m, rake dredge, one polyp, in fairly good condition, with gonophores, labelled “ type ”; ethanol. Paralectotype . USNM 1458912 : USA , Massachusetts , off Martha’s Vineyard , 40°49’30”N , 70°47’W , R/ V Fish Hawk Sta. 988, 0 7 September 1881 , 55 m, rake dredge, one polyp, in poor condition, with gonophores; ethanol. Type locality. USA , Massachusetts : off Martha’s Vineyard , 40°49’30”N , 70°47’W , 30 fm ( 55 m ) ( Fraser 1941b ). Current status. Invalid. Remarks. Fraser (1941b) designated material at the NMNH as the “ type ” of Tubularia crassa (USNM 22746). The collection contains two specimens. One had been proposed as the lectotype and the other as a paralectotype of the species by K.W. Petersen in inter-museum correspondence, but the designations were never published and cannot be upheld as valid. The same designations are repeated here, with the lectotype having the original collection number (USNM 22746) and the paralectotype being assigned a new number (USNM 1458912). The two original syntypes were also examined by Calder (1975) , who concluded that they were identical with Corymorpha pendula L. Agassiz, 1862 . As with that species, the hydroids appear to be solitary inhabitants of soft substrates, hydrocauli are thick and parenchymatic, hydranths have smaller oral and larger aboral whorls of tentacles, and gonosomes are fixed sporosacs rather than free medusae (L. Agassiz 1862; Fraser 1944a ). WoRMS currently lists T. crassa as a taxon inquirenda .