Some shallow-water hydroids (Cnidaria: Hydrozoa) from the central east coast of Florida, USA Author Calder, Dale R. text Zootaxa 2013 2013-05-14 3648 1 1 72 http://dx.doi.org/10.11646/zootaxa.3648.1.1 journal article 10.11646/zootaxa.3648.1.1 1175-5326 5264362 22089255-436A-4DBB-BD93-1D3C8CF281FE Halecium calderi Galea, 2010 Fig. 6a–c Halecium calderi Galea, 2010: 9 , figs. 3A–J. Type locality. Guadeloupe : Grande-Terre , Les Ancres ( 16° 27.002´N , 61° 32.320´W ) ( Galea 2010 ) . Voucher material. Off St. Lucie Inlet , 27°12.8’N , 80°01.2’W , 39 m , 17.v.1976 , Johnson-Sea-Link , JSL 2046, diver lockout, two colonies, up to 2 cm high, with gonophores, coll. J. Reed , ROMIZ B1094 .— Off St. Lucie Inlet , 27°11.8’N , 80°00.6’W , 42 m , on Oculina varicosa , 17.v.1976 , Johnson-Sea-Link , JSL 2047, diver lockout, one colony, 4 cm high, with gonophores, coll. G. Melton , ROMIZ B1124 . Remarks . This is the second record of a species recently described from Guadeloupe by Galea (2010) , extending its known range northwards to Florida from the Caribbean Sea. Male gonothecae are illustrated for the first time ( Fig. 6c ). They differ from those of the female ( Fig. 6b ) in having fewer lateral crests and in being approximately 30% smaller. FIGURE 6. a, Halecium calderi : part of hydrocaulus with hydrothecae, ROMIZ B1094, scale equals 0.25 mm. b, Halecium calderi : female gonotheca, ROMIZ B1094, scale equals 0.25 mm. c, Halecium calderi : male gonotheca, ROMIZ B1124, scale equals 0.20 mm. d, Halecium tenellum : a, part of hydrocaulus with hydrothecae, ROMIZ B1105, scale equals 0.25 mm. Morphologically, Halecium calderi Galea, 2010 closely resembles Halecium sibogae Billard, 1929 ( type locality: Indonesia ) and H. sibogae marocanum Billard, 1934 ( type locality: Morocco ). Relationships of these nominal species-group taxa remain unresolved. For now, the binomen established by Galea (2010) for the warm western North Atlantic population is adopted. Reported distribution. Atlantic coast of Florida . First record. Western Atlantic. Florida (this record) to Guadeloupe ( Galea 2010 ).