412 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [706] 
the miscrosvope, have the surface covered with projecting points. Sur- 
face of the crusts covered with small, irregular, scattered prominences, 
in which the branchial orifices are situated. Cloacal orifices few and 
distantly scattered. Systems irregular, the zodids scattered, but often 
arranged in rather indistinct concentric groups around the cloacal open- 
ings, and connected with them by cloacal ducts, which are variously 
branched, often showing through the integument as dark dendritic lines, 
converging toward the cloacal orifices from different directions. 
Color white, the zodids light yellowish. 
The colonies often become 200"™ to 300mm across; thickness seldom 
more than 2.5", commonly about 1.25 ™"; zodids .5"™ to .75"™ long; 
diameter .25™™ to .30"", 
Long Island Sound to Labrador. Thimble Islands, near New Haven, 
4to6fathoms, rocky; off Stonington, 4 fathoms, rocky; common in Vine- 
yard Sound, 8 to 15 fathoms; abundant in Casco Bay, 6 to 40 fathoms; 
abundant in the Bay of Fundy, low-water to 80 fathoms. Banks of 
Newfoundland (T. M. Coffin). Mingan Islands, 10 fathoms (A. E. V.). 
Saint George’s Bank (S. I. Smith). 
LEPTOCLINUM LUTEOLUM Verrill. (p. 403.) 
American Jour. Science, loc. cit., p. 446, 1872. 
This species forms thin, coriaceous crusts, like the preceding, filled in 
the same way with similar spherical corpuscles. The branchial orifices 
open at the summits of low verruce. The cloacal orifices are small, 
with four to six lobes, and distantly scattered. Color deep salmon, or 
somewhat rosy. 
The crusts are of all sizes up to 300" or more in diameter, and are 
usually somewhat thicker than in the preceding species, with larger and 
darker colored zodids. 
Connecticut to Bay of Fundy; off Stonington, Connecticut, 4 fathoms, 
rocky; Vineyard Sound, 6 to 14 fathoms, common ; Casco Bay, 10 to 40 
fathoms, common; Bay of Fundy, low-water to 80 fathoms, common. 
TANIOBRANCHIA. 
Sapa CaBort Desor. Plate XXXII, figs. 254, 255. (p. 445.) 
Proc. Boston Soc. Nat. History, vol. iii, p. 75, 1848 (not described); A. Agassiz, 
op. cit., vol. xi, p. 17, figs. 1 to 5, 1866; Binney, in Gould, Invert., ed. ii, p. 6, 
figs. 350 to 354, 1870 (description and figures copied from A. Agassiz). 
In the typical variety, as described by Mr. Agassiz, the color is pale 
pink or rosy; the nucleus deep chestnut. Long Island Sound to Saint 
George’s Bank. Common in Buzzard’s Bay and Vineyard Sound. Off 
Saint George’s Bank (S. I. Smith). 
Var. cyanea. (p. 446.) 
Nucleus and the borders of the mantle are bright Prussian-blue; sur- 
face of thelatter delicately reticulated with fine blue lines. 
Vineyard Sound, especially off Gay Head, in September. 
