Description of Careproctus patagonicus sp nov and C-magellanicus sp, nov(Pisces : Scorpaeniformes) from the lower slope of Drake Passage

摘要

Two new species of Liparidae are described from Drake Passage (55 degrees 32.8' S, 65 degrees 54.3' W). Careproctus patagonicus differs from all other congeneric species in the following combination of characters: C 9 (1+4/4), epural and parhypural unfused to single hypural; gill slit above P base; lower pectoral lobe well developed; pectoral girdle with one ventral radial (0+0+0+1) with a central foramen; da 2.4, aAf 10.2% L-S; disk 41.5% HL; some crater-like pits on posterior half of body; head and anterior part of body white. Careproctus magellanicus has the following diagnostic characters: A 46; P 24, well-developed lower pectoral lobe: scattered crater-like spots and some thumb-tack prickles on body; one suprabranchial pore; basal plate of the pectoral girdle with two fenestrae; four radials (3+1), the first with a ventral notch; HL 17.1, preD 18.5% L-S. The structure of the endochondral pectoral girdle of both species is commented.