DB. EAIRD ON THE APHR0DITACEA3T ANNELIDES. 187 



Sp. 7. Halostbna lokqicirea. 



Polynoe longicirra, Schmarda, Neue wirbell. Thiers, ii. 152, t. 36. 

 fig. 309. 



Sah. Near Belligam, island of CeyloB, Schmarda. 



Sp. 8. Halostdna lobocephala. 



Polynoe lobocephala, Schmarda, I. c. 157, t. 36. fig. 314. 

 Hah. Port Royal, Jamaica, Schmarda. 



Sp. 9. Halostdna gelatikosa. 



Polynoe gelatinosa, Sars, Beskrivelser, p. 63, tab. 9, fig. 25. 

 Hah. Bergen, coast of Norway, Sars. 



Sp. 10. HaLOSTDNA MiJLLERI. 



Polynoe Miilleri, Gruhe, Annulata Oerstediana, p. 22. 

 Sah. Valparaiso, Kroyer. 



Sp. 11. Halostdna ptjnctulata. 

 Polynoe punctulata, Grube, I. c. p. 23. 

 Sah. Rio Janeiro, Kroyer. 



Sp. 12. ? Halosydna clay at a. 

 Polynoe clavata, Gruhe, I. c. p. 22. 

 Hah. Christianstad, isle of Santa Cruz, West Indies, Oersted. 



Sp. 13. ? Halosthna imbricata. 



Aphrodita imbricata, Linnceus,Syst. Nat. edit. 12, p. 1084 {fide Johnston, 

 Cat. Brit. Non-parasit. Worms, p. 118). 



Sp. 14. ? Halostdka eloccosa. 



Polynoe floccosa, Savigny, Syst. des Annelides, 23. 

 Hah. West coast of France, Savigny. 



Sp. 15. ? Halostdna chilensis. 



Polynoe Chilensis, Blanchard, Gay's Historia fisica y politica de Chile, 

 torn. iii. p. 15, Atlas, Anillados, tab. 1. figs. 1, la. 



Hah. San Carlos, coast of Chiloe, Gay. 



Sp. 16. ? HALOSTDlSrA TIRENS. 



Polynoe yirens, Blanchard, I. c. p. 16, tab. 1. fig. 2. 



Hah. Calbuco, coast of Chiloe, Gay. 



I quote these two species with doubt as to their true generic 

 position, because the figures do not correspond with the descrip- 

 tions. In Polynoe chilensis, M. Blanchard describes the number 

 of elytra as being 16 pairs, "covering the back entirely." In 

 his figure he depicts the animal as having 29 pairs of elytra, 

 which leave the back naked in the centre ! In P. virens he de- 

 scribes the animal as having 35 pairs of elytra, while he figures it 

 as possessing 56 or 57 ! 



