26 MUSETM, I'.KOOKLYN INSTITUTE OF AIITS AND SCIENCES. 



there is a well di'vi'lopcd "tonjiiic." The four heart-shaped gonads are found 

 upon the radial canals ininiedialely ab!)ve the circular vessel. The entoderm 

 of the manuliriuni is yreen. Coniinon in the West Indies and Florida region 

 and occasionally drifted upon the New England coast in summer. 



Glossocodon tenuirostris, Fewkes. 



Fuj. S3, Plate IV. 



Fewkes, J. W., 18S3; Bull. Mus. Comp. Zool. at Harvaril Coll., Vol. IX., p. 278, PI. VII., 

 Figs. 1-9. 



Iiiriope cerasiformis, Mans, O., 130 J ; Ergeb. der Plankton Exped., Bd. II.. K. C, p. 35, 

 Taf. II., Figs. 5, 6. 



Iiiriope tenuirostris, Au.vssiz, L., 1362 ; Cout. Nat. IliBt. U. S. , Vol. IV., p. 365. 



l>ell bluntly conical, 7 mm. wide. Four h)ng, hollow, tapering, radial tenta- 

 cles ringed at regular intervals. Four short-stiff, interradial, club-shaped ten- 

 tacles which project upward from the liell-margin. Eight otocysts on inner 

 side of bell cavity, one at base of each tentacle. Velum well developed. 

 Manubrium slender, about as long as the width of the bell. Peduncle short 

 and conical. Four lips, simi)le, cruciform, and studded with nematocysts. 

 Four broad radial canals. (Mrcular vessel broad with four blindly ending 

 centripetal diverticuhe. Four gonads at the middle of each of the four radial 

 canals. Entoderm of manubrium green, lips and long hollow tentacles pink. 



Abundant in Bahamas, West Indies, and Tortugas. Occasionally drifted 

 northward to the southern coast of New England. 



Aglaura hemistoma, Feron iiud Lesueuk. 



Fig. Sli, Plate IV. 



Peron, F. et Le.sueur, C. A., 1809; Tableau des Meduses, p. 351, No. 73. 



Bell cylindrical -1 mm. high, with vertical sides and flat top. Bell-walls 

 very thin but (luite rigid. Tentacles numerous but very brittle, so that they 

 are usually found to be broken off short. Flight small marginal otocysts. 

 Velum well developed. Flight slender, straight, radial canals. Manubrium 

 flask-shaped with four curved lips. A cylindrical peduncle above the manu- 

 brium. Eight sausage-shaped gonads arise from the proximal part of the 

 gastric portion of the manubrium. The entoderm of the manubrium is rosin- 

 brown. Common in AVest Indian region and Tropical Atlantic. 



