In contrast, several families such as Dinophilidae, Diurodrilidae, Nerillidae, Parergodrilidae, Polygordiidae, Protodrilidae, Psammodrilidae, Saccocirridae, as well as some genera within Sigalionidae (e.g.
Despite being one of the regions with the highest number of recorded species of annelids in the Caribbean, Protodrilidae is so far the only interstitial family recorded for Colombia, although only from specimens identified to the family level (Guzman-Alvis, Latting, & Ruiz, 2006).
Whereas, those represent macrofaunal species, similar explanations can be proposed for those interstitial annelids, with pelagic feeding larvae, such as Saccocirridae or Protodrilidae (Di Domenico et al., 2014b).
Protodrilus (Protodrilidae, Annelida) from the southern and southeastern Brazilian coasts.
Description of three new species of Protodrilus (Annelida, Protodrilidae) from Central America.
Protodrilus Hatschek, 1880, and Astomus Jouin, 1979, are two genera belonging to the family Protodrilidae Czerniavsky (1881) (Hatschek, 1878, 1888, 1893).
Thirty-seven species were previously recorded and described in the family Protodrilidae, mainly from waters around the Atlantic and New Zealand (Langerhans, 1880; Wieser, 1957; von Nordheim, 1983, 1989; Reiser, 1997; Domenico et al, 2013; Martinez et al, 2013).
Purschke and Jouin (1988) and Purschke (1993) demonstrated that the three families, Protodrilidae, Protodriloidae, and Saccocirridae, each possess a pair of palps (not tentacles) and form a distinct order, Protodrilida, as a sister group to Spionida.
We are interested in determining why and how this Protodrilus species, which belongs to the Protodrilidae and which is widely reported to be dispersed in sandy intertidal areas, occurred predominantly in a whale-fall community.
n., an interstitial polychaete (Protodrilidae) from subtidal sands off Helgoland, German Bight.
Of the 138 polychaete species for which Rice (1992) lists sperm dimensions, only 5% have acrosomes exceeding 10.0 [micro]m--all of them from small-bodied, interstitial species in the family Protodrilidae
. Protodrilid species in which fertilization occurs in the coelom of the female often transfer sperm via spermatophores, and they frequently have highly modified filiform introsperm (Jamieson and Rouse, 1989), one of which has an acrosome reaching 50.0 [micro]m in length.