18 M.A. de Quatrefages on the Classification of the Annelides. 
II. Feet uniramose. 
A. With antennee and tentacles...........0008 . 5, Hipponoé. 
B. Antenne and tentacles wanting. . : 
a; Branchite AN TOWS: «61.65 <c as anes PUES ...+ 6, Lophonota. 
b. Branchiz in groups........ (eves De cea 7. Didymobranchus. 
_ GENERA INCERT# SEDIS 2; Aristenta, Cryptonotus. 
Family VI. Nephthydea (3 genera). 
I. Head bearing antenne. 
JAGR Ga Srsial OGM ae aree nee thane Zi 1. Nephthys. 
Br Antenn gs 2a Pen eve ee ee oa ee See 2. Portelia. 
II. Antenne wanting ........ oth coro Pe ecaty terio Bans 3, Diplobranchus. 
Family VII. Nerinea (6 genera). 
I, Feet biramose. 
A, Feet without cirri. 
PP ORMME Marine e sae veces a eam 1. Nerine. 
b Une present ait iiss. sees sees ae. 2. Uncinia. 
B. Feet bearing cirri. 
Da bMteriar CHT ONLY. sire iss: ra gies ted tuck sua ge 3. Aonis. 
b. Inferior and. superior cirri. 
PINQIOVES Mercwitine enti aic are ogra eeete Gar a you iene 4, Malacocera. 
T Lyes PReSt myaror Gnas antes apel astants 5. Colobranchus. 
1 LY Sere 0 a7: 007 CfcTs rar eR ee ee 6. Pygospio. 
GENERA INCERT# SEDIS 2: Pygophyllum, Clytia. 
Family VIII. Cirratulea (6 genera). 
I. Branchie on nearly all the segments. 
A. Branchize both pedal and dorsal. 
a. The two sorts of branchis. appearing at the 
SAMO HME . ic cssctersrergesecreresivas 1. Cirratulus. 
b. Pedal branchize preceding ‘the dorsal ...... 2, Audouinia. 
B. Branchite pedal only «00:50 2c0eecesesees cows 3. Ctrrinereis. 
II. Branchize only on the first segments. : 
A. No tentadles: 5. cscsescgrcnsncecee dedeanons 4, Dodecacerea. 
BAOne pairot tentacles >... s..uewe nae meet 5. Heterocirrus. 
C. Three pairs of tentacles... ..2.0.. peareee sso. 6, Nagaranseta. 
Family IX. Chloremea (2 tribes, 5 genera). 
I. Body covered with hairs (Tribe Chloremea prop.) 1. Chlorema. 
II. Body without hairs, or with very short -hairs. 
(Tribe Chloremea nuda). 
A. Head protected by sete. 
a, All the feet-biramose. 
Se Peut Very GISHNOE! isc. 0< apc sles wate 2. Stphostomeon. 
TERCHC IN GUSLID Ctl... ay dante ea a einen 3. Pherusa. 
bh, Only the first feet biramose ...5.......505 4, Lophiocephala: 
Are Coa ean 5. Brada. 
GENERA INCERT# SEDIS 4: Spinther, Flenungia, Siylaroides, 
Tecturella, 
B. Head entirely uncovered 
