NO. 1 HARTMAN : POLYCHAETOUS ANNELIDS 3 



A. Maxillary pairs dissimilar; forceps lack teeth, other maxillary pieces 

 disposed in a semicircle, in retraction. Parapodia uniramous, provided 



with several kinds of setae Eunice Labidognatha 



(Includes the Onuphidae, Eunicidae, and Lumbrineridae.) 



I. Left maxillae with one more piece than the right, or left maxil- 

 lae with pieces III and IV separate, right with pieces III and IV 



fused ; prostomium with antennae 



Eunice Labidognatha Tentaculata 



(Onuphidae includes 1 and 2 below, Eunicidae 3 to 6 below.) 



1. With 2 long anterior and 5 long posterior antennae . . . 

 Heptaceras Ehlers 



2. With 2 short anterior and 5 long posterior antennae . . a 



a. With a pair of tentacular cirri 



Dtopatra Audouin and Edwards 



b. Without a pair of tentacular cirri 



Onuphis Audouin and Edwards 



3. With 5 antennae; branchiae present a 



a. With a pair of tentacular cirri . . . Eunice Savigny 



b. Without a pair of tentacular cirri 



Marphysa Quatrefages 



4. With 5 antennae ; branchiae absent . . N icidio n Kinherg 



5. With 3 antennae; without branchiae . Lysidice Lamarck 

 (J?nphtro Kinberg was retained by Ehlers as branchiate 

 form, but, since it was based on an error and rightly goes to 

 Marphysa, it is eliminated.) 



6. With one antenna Nematonereis Schmarda 



(Includes the synonj^m Blainvillea Quatrefages, which Ehl- 

 ers retained.) 



II. Maxillary plates paired ; prostomium without antennae . . . 



Eunice Labidognatha Nuda 



(Includes only the Lumbrineridae.) 



1. With branchiae N'fno^' Kinberg 



2. Without branchiae Lumbrineris Blainville 



B. Maxillae disposed in parallel rows, more or less resemble one an- 

 other; parapodia uniramous, with a single kind of seta, or biramous 



with 2 kinds of setae Eunice Prionognatha 



I. Parapodia uniramous, with simple setae . 



Eunice Prionognatha Monocopa 



(Arabellidae includes 1 below, and Lysaretidae includes 2 be- 

 low.) 



