K. Fitzhugh, NEW FAN WORM GENERA AND SPECIES (POLYCHAETA, SABELLIDAE, FABRICIINAE)FROM THE WESTERN PACIFIC, AND CLADISTIC RELATIONSHIPS AMONG GENERA, Zoologica scripta, 27(3), 1998, pp. 209-245
Five new species are described from among the genera Fabriciola Friedr
ich. 1939 tone species from Okinawa), Novafabricia Fitzhugh, 1990 (two
species from Australia and Papua New Guinea, respectively), and two n
ew monotypic genera, Brifacia gen. n. (Australia), and Pseudoaugenerie
lla gen. n. (Okinawa). All species are known only from the intertidal.
Fabriciola rubra sp, n, is a member of the species complex with red p
ersitomial and pygidial eyes, inferior thoracic flagellate setae, and
abdominal pin-head setae. Novafabricia lab,us sp. n., and N. exiguus s
p. n., are distinguished from other species based on the distribution
of inferior thoracic pseudospatulate setae. Brifacia metastellaris sp.
n., resembles Fabricia stellaris (Muller, 1774) with regard to anteri
or peristomial ring collar construction and distribution of pseudospat
ulate setae, but differs in having abdominal uncini with relatively sh
ort manubria. Pseudoaugeneriella uniranta sp. n., most closely resembl
es species of Augeneriella Banse, 1956 in general form. but has unbran
ched vascularized ventral filamentous appendages. Revised keys to fabr
iciin genera and selected species are provided. Cladistic relationship
s of these new genera and species to other Fabriciinae are examined an
d the status of some characters are reviewed. Whereas previous analyse
s have supported a monophyletic Augeneriella on the basis of branched,
vascularized ventral filamentous appendages, present results show Aug
eneriella paraphyletic relative to Fabricia Blainville, 1828, Novafabr
icia, Fabricinuda Fitzhugh, 1990 Parafabricia Fitzhugh, 1992 and Brifa
cia. Similarly, some topologies show Novafabricia, which has only been
defined by the presence of poorly developed dorsal lips, to be paraph
yletic relative to Fabricia, Fabricinuda, Parafabricia, and Brifacia.
The cladistic analyses dal however, support recognition of Bn;facia an
d Pseudoaugeneriella. With the addition of Brifacia, the presence of u
nbranched, vascularized appendages is plesiomorphic for the Fabriciina
e, which has not been previously hypothesized. (C) 1998 The Norwegian
Academy of Science and Letters.