14 



THE ANNELIDA POLYCHAETA. 



peculiar new genus Kainonereis taken by night light off the Gilbert Islands, 

 and those of the Syllidae, including the new generic type Synelmis. Consider- 

 able additions are made to the pelagic species of the Phyllodocidae, two repre- 

 senting new genera, Mastigethus and Nans. To the six previously known 

 pelagic Polynoidae, four are added, three being types of genera of which atten- 

 tion may be called to Plotolepis, a form showing peculiar adaptations to life 

 at the surface in its greatly elongate and inflated notocirri and in its vesicular 

 though reduced elytra. Complete hsts of the forms taken in the different 

 bathymetrical zones are given (p. 16-18). 



Separate lists of the forms secured by the different expeditions are here 

 given. It may be noted that duplication of species is neghgible. 



LISTS OF SPECIES. 



Chloeia entypa, sp. nov. 

 Harmothoe mexicana, sp. nov. 

 Lepidasthenia curta, sp. nov. 

 Admetella dolichopus, sp. nov. 

 Polynoe nesiotes, sp. nov. 

 Laetmonice benthaliana Mcintosh 



sp. 

 Nepthys sp. 



Anaitides compsa, sp. nov. 

 Phyllodoce medipapillata Moore 

 Hesione panamena, sp. nov. 

 Leodice segregata, sp. nov. 



pauroneurata, sp. nov. 

 panamena, sp. nov. 

 Onuphis nannognathus, sp. nov. 

 litabranehia, sp. nov. 

 lepta, sp. nov. 

 crassisetosa, sp. nov. 

 cobra, sp. nov. 

 Paronuphis solenotecton, sp. nov. 

 Hyalinoecia tecton, sp. nov. 



tubicola (O. F. MuUer) 

 leucacra, sp. nov. 



Expedition of 1891. 



Lumbrinereis bifilaris Ehlers 

 Hemipodus mexicanus, sp. nov. 

 Glycera profundi, sp. nov. 

 Branchethus latum, gen. et sp. nov. 

 Chaetopterus pergamentaceus Cuvier 

 Cirratulus sinincolens, sp. nov. 

 Brada verrucosa, sp. nov. 



irenaia, sp. nov. 

 Ilyphagus bythincola, sp. nov. 

 Sternaspis fossor Stimpson 

 maior, sp. nov. 

 Maldanella fibrillata, sp. nov. 

 Maldanidarum, gen. et sp. ? 

 Nicolea latens, sp. nov. 

 Eupolymnia regnans, sp. nov. 

 Thelepus pericensis, sp. nov. 

 Ampharete homa, sp. nov. 

 Ampharetidarum, gen. et sp.? 

 Amphicteis obscurior, sp. nov. 



uncopalea, sp. nov. 



orphnius, sp. nov. 

 Sabellides delus, sp nov. 

 Spirobranchus tricornis (Morch) 



Hermodice striata Kinberg 

 Arnpliinome vagans (SavLgny) 

 Kurytlioe complanata (Pallas) 

 Iphione ovata Kinberg 

 Panthalis panamensis, sp. nov 



Expedition of 1899-1900. 



Phyllodoce fakaravana, sp. nov. 



sp. 

 Nans simplex, gen. et sp. nov. 

 Halodora reynaudii (Audouin and Milne 

 Edwards) 



