106 A renicolidae 



Arenieola eristata (continued) — 



Child, Arch. Entw.-mech., ix (1900), p. 587 (Wood's HoU and North 



Falmouth, Mass.). 

 Gamble and Ashworth, Q. J. Micr. Sci., xliii (1900), pp. 423, 541, pi. xxii, 



fig. 1, pi. xxiv, fig. 30 (Jamaica). 

 Horst, Notes Leyden Mns., xi (1889), p. 40, pi. iii, figs. 6-11 (gills, chaetae). 

 Ives, Proc. Acad"! Nat. Sci. Philad. 1890 (1891), p. 73. 

 Lillie, Mitt. Zool. Stat. Neapel, xvii (1905), p. 344 (nephr., devel.). 

 Lo Bianco, Atti E. Accad. Sci. Fis. Mat. Napoli, v, ser. 2, no. 11 (1893), 



p. 11, tav. i, fig. 1, tav. ii, fig. 1, tav. iii, figs. 5, 6; Mitt. Zool. Stat. 



Neapel, xiii (1899), p. 484 : xix (1909), p. 577. 

 Verrill, Trans. Conn. Acad. Arts Sci., xi (1901), p. 39 : xii (1907), p. 147. 

 Webster, Bull. U.S. Nat. Mus., no. xxv (1884), p. 323 (Bermuda). 

 Wilson, Studies Biol. Lab. Johns Hopkins Univ., ii (1882), p. 278 (devel.). 

 Arenieola ? eristata — 



Webster, 32 Ann. Eep. N.Y. State Mus. (1879), p. 117 (New Jersey). 

 Arenieola antillensis — 



Liltl-eu, Vid. Med. Naturh. Foren. Kjobenhavn 1864 (1865), p. 120 



(St. Croix). 

 Elders, Mem. Mus. Comp, Zool. Harvard, xv (1887), p. 173 (Florida; 



Captiva Key) ; Zeit. Wiss. Zool., liii, Suppl. (1892), pp. 218, 255, 



taf] xiii, figs. 30-32. 

 Arenieola eristata, ■partim — 



Fauvel, Mem. Soc. Nation. Sci. Nat. Math. Cherbourg, xxxi (1899). p. 169. 

 Mesnil, Bull. Sci. France Belg., xxx (1897), p. 163. 



Caudate Arenieola with seventeen chaetiferous segments ; eleven 



pairs of gills, the first situated on the seventh segment ; gills large 



N.Gr 



' A.B.3. 



Ch. Seo! 



Fig. 45.— j4. eristata, from Wood's Holl. Anteiior end, 

 dorsal aspect ; buccal mass protruded : Pn. Prostomiuni ; 

 Per. Peristomium ; N.Gr. Nuchal groove ; A.B.S. Aoliae- 

 tous body-segment ; Ch.Segi. First cbaetiferoiis segment. 



and pinnate, their axes generally joined basally by a weh-like mem- 

 brane ; median lobe of the prostomium larger than the lateral lobes ; 



