Pectinariidae, Malmgren, 1866

Nogueira, João Miguel De Matos, Ribeiro, William M. G., Carrerette, Orlemir & Hutchings, Pat, 2019, Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic, Zootaxa 4571 (4), pp. 489-509 : 491

Key for the species of Pectinariidae reported from off the Brazilian coast

1. Opercular margin smooth................................................................................ 2

- Opercular margin with cirri.............................................. Amphictene catharinensis ( Grube, 1870)

2. Cephalic veil with cirri; clearly marked transition between scaphe and posterior body................................ 3

- Cephalic veil smooth, except for medial extension; poorly marked transition between scaphe and posterior body................................................................................................ Petta alissoni n. sp.

3. Numerous pairs of scaphal hooks, from ~10 to more than 20................................................... 4

- Few pairs of scaphal hooks, less than 5..................................................... Pectinaria regalis *

4. Scaphal hooks distally flattened, lanceolate.................................................. Pectinaria gouldii *

- Scaphal hooks distally pointed, slightly curved, sigmoid.................................... Pectinaria nonatoi n. sp.