Diplocirrus Haase 1915

Key to species of Diplocirrus Haase, 1915 (modified from Teixeira et al. (2015))

1. Body papillae abundant................................................................................. 2

- Body papillae scarce, long, tunic looks bare...................................... Diplocirrus sp. from Sri Lanka (*)

2. Body papillae short, giving a velvety appearance............................................................. 3

- Body papillae long, giving a hirsute appearance............................................................. 20

3. Body without sand particles............................................................................. 4

- Body with sand particles............................................................................... 12 4. Ventrolateral gonopores present in some anterior chaetigers.................................................... 5 - Ventrolateral gonopores absent........................................................................... 9 5. First chaetiger with long chaetae, about half as long as body width; caruncle posteriorly expanded......................