584 REPOET OF COMMISSIONER OF FISH AND FISHERIES. 



Bay of Fundy, in 40 fathoms^ mud. It was dredged near St. George's 

 Bank in 85, 110, and 150 fathoms, mud, by Dr. A. S. Packard, on the 

 "Bache,'' 1872. 



EuMiDiA Americana Yerrill, sp. no v. (p. 194.) 



Body long and slender. Head triangular, subcordate, broad and 

 slightly emarginate posteriorly, the sides rapidly converging, the front 

 end narrow and rounded, with four slender antennae, which are as long 

 as the head j odd median antenna long and slender, tapering, as long as 

 or longer than the head. Eyes moderately large, round, convex, near 

 the posterior margin of the head. Tentacular cirri long and slender ; 

 crowded. Proboscis elongated, subclavate, enlarging to the end, which 

 is surrounded by about fourteen triangular papillae ; the basal two-thirds 

 covered with small, slender, prominent papillae, which are not crowded, 

 but arranged in longitudinal rows ; this part of the i^roboscis is, in the 

 preserved specimens, longitudinally ridged and transversely wrinkled j 

 the terminal third is nearly smooth, but usually minutely granulous. 

 The lateral lamellae, or branchiae, are ovate-lanceolate, leaf-like, with 

 curved tips; posteriorly they are larger and more acute. Length up to 

 QOmm . breadth, 1.5™^. 



Vineyard Sound, 8 to 12 fathoms, among compound ascidiaus. 



EUMIDIA VIVIDA Yerrill, sp. nov. 



Head relatively a little longer than in the preceding species, with the 

 sides more convex, and the front rounded ; antennae long and slender. 

 Eyes brownish, very large, about twice as large as in the precediug 

 species. Proboscis long, slender, clavate, nearly smooth, but with a 

 few minute, distant papillae ; the terminal orifice surrounded by about 

 eighteen very small papilliform denticulations. Branchiae of the ante- 

 rior segments long and narrow lanceolate ; of the middle segments 

 ovate. Length up to 45"™ -, breadth, 1.5™^. 



Yineyard Sound, 8 to 12 fathoms, among ascidians. 



EuMiDiA PAPILLOSA Yerrill, sp. nov. 



Head short, rounded, convex, emarginate posteriorly, the sides 

 convex; antennae not very slender; median odd one stout, tapering, 

 acute, as long as the head. Eyes large ; brown. Tentacular cirri 

 rather stout, those of the two posterior pairs more than twice as long as 

 the others. Proboscis long, clavate, densely covered with short, 

 rounded papilhe, and with a circle of minute papilh\? at the orifice. 



Length up to 40""" ; breadth, 2'""\ 

 • Yineyard Sound, G to 10 fathoms, among compound ascidians. 



EuLALiA PISTACIA Yerrill, sp. nov. 



Body moderately slender, depressed. Head convex, shorter than 

 broad ; in preserved specimens, sides well rounded, posterior margin 

 slightly emarginate ; median odd antenna small, slender, considerably 



