22 M.A. de Quatrefages on the Classification of ihe Annelides, 
B. Lower ramus of anterior feet with simple sete. 
Bh, MNO OETMCIG 21s )ata ie elses «sie sets fe Seesevas Os SROlABI OR 
Dp OaRUnCle PRESEN a Naas py css hiots Merb) el eat 4, Porcva. 
Il. Trunk divided into foliaceous lobes..... Fae eats 5. Anthostomum. 
GENERA INCERTZ sEDIS 4: Magelona, Gisela, Theodisca, Hermandura. - 
Family XXII. Leucodorea (5 genera). 
I. Feet different. 
A. Feet biramose. 
aewlocamehizo Superior...) o-< yyue ius = we .1+« 1, Leucodore. 
b. Branchiz inferior. 
* Third segment abnormal .............005 2. Disoma. 
7 Butth segment abnormal’ 7,2. .:>......56: 3. Polydora. 
iB. Beep mmiramase (25 sisye i e+ ea93 Cite ciel ake 4. Spione. 
JJing JDS8Ns Sree Ay cs eo aeons anenotaclnts he Ih 5. Spiophanes. 
GENUS INCERT# SEDIS: Spio. 
Family XXIII. Hermellea (3 genera). 
I. Body in 3 regions. 
A. Operculum with 3 ranges of setz.........++5 1. Hermella. 
B. Operculum with 2 ranges of set#............ 2. Pallasia. 
DE, sod 7 Wise ane ONGOIAA ots ate sta alefavaietaress ataraaets aoa 3. Centrocorone. 
GENERA INCERTZ SEDIS 2: Branchiosabella, Uncinocheta. 
Family XXIV. Pectinarea (2 genera). 
NMiteniehies Depats acter saw 0's eevee se a ekg ae aus 1. Pectinaria. 
PE Branehigiea Als. .5 5% 66 + 5 tise ase taielanereaaet 2. Scalis. 
Family XXV. Terebellea (3 tribes, 11 genera). 
I. Body in 2 regions ( Terebellea prop.). 
A. With dorsal branchiz (Tribe 7. branchiata). 
5 pairs 1. Terebella. 
a. Dorsal branchi arborescent 4 2 pairs 2. Physelia. 
Lpar .... 3. ddaha, 
4 
b. Dorsal branchize pectinated, median,....... . Terebellides. 
c. Dorsal branchis cirriform. 
PPUCCACIPEMSIMPIG 20.4 5.s.74 near 5. Phenacia. 
TAUGeal-GiErl PMMA e anc. hangidchgue end: 6. Sabellidis. 
d. Dorsal branchiz cirriform and pinnate...... 7. Isolda. 
B. No dorsal branchie (Tribe 7. abranchiata).... 8. Apneumea. 
II. Body in one region (Tribe Heteroterebellea). 
A. Dorsal branchize arborescent 3 POTS one q eee 0. Heteroter ‘ebella. 
2 aS was asia 10, Heterophyselia. 
Ap eg xBRT GNU CHETEOEIN Ws 1) aeons oie ws Pees Mepranas ll. Heterophenacia. 
GENERA INCERT# SEDIS 7: Lthytoccphalus, Amphicteis, Polycirrus, 
Sabellina, Anisomelas, Piratesa, Lwmara. 
Family XXVI. Serpulea (3 tribes, 21 genera). 
I. Head without an operculum. 
A. Regions distinct (Tribe S, Sabellea). 
a. Tube membranous. 
* Branchiz with a circular base. 
a. Cirri free. ty oe 
ie Wo caudal eyes. icicccvseccceasess0 he Mahella. 
