376 



BULLETIN i'K THK I'MTKU STATES fis:i cuM.M I>SH>N. 



Nemopsis bachei Ag. Fig. 89. 

 (MOm. Am. Acatl. *-i., IV, p. 289.) 



Bell deep, ovoid, sometimes almost globular; thickness of bell substance greater than in most of 

 preceding species, making bell cavity proportionally small. Tentacles in 4 bunches, the middle pair in 

 each bunch being distinctly club-shaped 

 at ends. Proboscis short and small, end- 

 ing in 4 much-branched mouth-tentacles, 

 each ramification of which ends in an 

 oval group of nematocysts. Mouth-ten- 

 tacles highly retractile and not evident 

 when animal is disturbed. The bunchea 

 of marginal tentacles are borne on con- 

 spicuous swellings or pads at terminations 

 of the four radial canals, and each tentacle 

 has a black eye-spot above its base. 



Qjlorx. Tentacular bulbs and ovaries 

 yellow. Ends of middle tentacles of each 

 bunch dark brown. 



Dixfi'ihtitiuii. Nant'icket and Xau- 



shon (A. Agaasiz), Newport, Vineyard w. Nemaphtadielt.Ag. 



Sound, Buzzards Hay. A. A aense-bulb and gronp of tentacles (enlarged^. 



Bougainvillia carolinensis (McCr.). Fig. 90. 

 ( fJij>j>oci'< .-HI rni-olhn /<,-/* McCr. Proe. Elliott Soc., vol. T, No. 1, p. lill.) 



1'x'll subirldliular, thick. Marginal tentacles in four bunches, arising from marginal swellings 

 which are narrower and more pointed than in the preceding species. Tentacles all alike, with slightly 

 enlarged ends, and eye-spots over their bases. Proboscis slender, with four branched mouth-tentaclea 

 ending in nematocysl batteries. Radial canals, 4. 



I'nliii-K. Tentacular bulbs red, edged with yellow. Proboscis red. 



IHxli-'ihiilinii. Common in the \Voods Hole region. 



90. BougatnvtlllacaroUne!Uls(lfcCr,).; (juv.). 91. Boayniiirillia tupcrciliaris Ag. 92. ifc;/a grata A. AS. 



Bougainvillia superciliaris Ag. Fig. 91. 

 (Cont. Nat. Hist. u. S., vol. iv, p. 289.) 



Bell sub-globular, very thick. Marginal tentacles in four pairs at birth, later in four bunches. 

 Tentacular bulbs and eye-spots as in the preceding species. Proboscis thick and heavy but not 

 reaching much more than half way to the bell opening, ending in four branched mouth-tentacles 

 terminating in nematocyst batteries. Radial canals, 4. 



Colors. Marginal sense bodies orange red surrounded by yellow. Proboscis pale yellow, tinged 

 with red distally. 



Distribution. yew-port, Rhode Island (Leidv). Woods Hole. 



