ANNULATA. 241 



AUD. and EDW. 1. 1. p. 248, PL 16, figs. 9 13 ; Phyllod. saxicola QUATRE- 

 FAGES, GUERIN Magas. de Zool. 1843, Annel. p. i, PI. i, &c. 



Psamathe JOHNST. 

 lo'ida JOHNST. 



Comp. JOHNSTON, Ann. of Nat. Hist. iv. pp. 229 231. 

 Myriana SAV. 



Alciopa AUD. and EDW. Eyes large, lateral. Tubercles lobate 

 (glandular) at the base of the pediform tubercles. Other characters 

 as in Phyllodoce. 



Sp. Ale. Reynaudii AUD. and EDW. Ann. des Sc. not. xxix. pp. 236 238, 

 Tab. xv. figs. 6 n; Comp. A. KROHN, Zool. und anat. BemerTcung&n 

 ueber die Alciopen, ERICHSON'S Archiv. 1845, s. 171 184, Tab. vi. Besides 

 the description of some new species this memoir contains also anatomical 

 details, amongst which, especially those upon the eyes are worthy of notice 

 (see above, p. 217). The glandular appendages of the rudimentary feet 

 AUDOUIN and MILNE EDWARDS consider to be gills. 



Hesione SAV. Head broad, truncated, furnished with four lateral 

 eyes and four small tentacles. Long tentacular cirri at the sides of 

 the head. Setigerous tubercles of the segments undivided, with 

 dorsal and ventral cirrus filiform, the dorsal long. Body oblong, 

 |\vith segments not numerous. Proboscis large, without jaws. 



Sp. Hesione splendida SAV. Descr. de VEgypte, Annel. PI. in. fig. 3, GUER. 

 Iconogr. Annel. PI. 8, fig. 3. 



Note. Genus Halimede RATHKE is distinguished from Hesione 

 by three branchiae (lobed appendages) at each of the pediform 

 tubercles (Beitr. z. Fauna Noriv. pp. 166 169). 



Syllis SAV. Head bilobed, anteriorly emarginate, with four 

 kyes placed in transverse row, and three tentacles, thin, moniliform. 

 [Setigerous tubercles of the segments undivided, with dorsal cirrus 

 long, moniliform. Proboscis without jaws. Body elongate, slender, 

 [with numerous segments. 



Sp. Syllis monilaris SAV. Descr. de I'Egypte, Annel. PI. iv. fig. 3, GUR. 

 Iconogr. Annel. PI. 8, fig. i ; Sytt. Maculosa EDW., Cuv. R. Ani. ed. ill., 

 Annel. PI. 15, figs, i, &c. 



Nereis Cuv. (spec, of gen. Nereis L., Lycoris SAV. and Lycastis 

 Head anteriorly attenuated, with four eyes arranged in two 

 ries and four short tentacles, the external larger, conical. Subulate 

 VOL. I. 16 



