|
Vol. 45 No. 4, 2006
Intertidal Species of Branchiomma
Kölliker and Pseudobranchiomma
Jones (Polychaeta: Sabellidae: Sabellinae) Occurring on Rocky Shores
along the State of São Paulo, Southeastern Brazil
João
Miguel de Matos Nogueira1,*, Maíra Cappellani Silva Rossi1,
and Eduardo López2
1Laboratório
de Poliquetologia, IB - USP, Departamento de Zoologia, Instituto de
Biociências, Universidade de São Paulo, R. do Matão, Travessa 14, n.
101, 05508-900, São Paulo, SP, Brazil. E-mail: nogueira@ib.usp.br;
lapol@ib.usp.br
2Laboratorio de Biología Marina e Invertebrados,
Departamento de Biología, Unidad de Zoología, Universidad Autónoma de
Madrid, Cantoblanco, 28049, Madrid, Spain. E-mail: eduardo.lopez@uam.es
João
Miguel de Matos Nogueira, Maíra Cappellani Silva Rossi, and Eduardo
López (2006) Four species of sabelline sabellids collected
intertidally on rocky shores off the State of São Paulo are herein
described. Among these species, Pseudobranchiomma
paraemersoni sp. nov., P.
paulista sp. nov., and Branchiomma
patriota sp. nov. are new to science and B. luctuosum Grube is a new
occurrence for the Brazilian coast. Pseudobranchiomma
paraemersoni sp. nov. is a small species, with 4-6 thoracic
chaetigers and 3 or 4 pairs of lateral serrations on the radiolar
flanges. Pseudobranchiomma paulista
sp. nov. is a relatively large species, with 6-10 thoracic chaetigers
and 10-19 pairs of lateral serrations on the radiolar flanges. Branchiomma patriota sp. nov. has
an unpaired basalmost row of stylodes and long and short stylodes
irregularly distributed along the radioles, with the longest up to 4
times as long as the shortest. Comparisons with the closest congeners
are provided for each of these new species, and a possible synapomorphy
for Pseudobranchiomma is
proposed based on the pigmentation of the crown in live material. Some
speculations about the presence of B.
luctuosum in Brazil are made, as we consider it to be an
invasive species, as has been reported to have occurred before in Italy.
Key words: Polychaeta,
Sabellidae, Sabellinae, Branchiomma,
Pseudobranchiomma.
*Correspondence: E-mail: nogueira@ib.usp.br
|
