632 BULLETIN OF THE BUREAU OF FISHERIES. 
Hydroides dianthus — Continued. 
7616 (many clusters of tubes), 7620 (large clus- 
ter of tubes), 7621 (plentiful), 7623 (few tubes), 
7625 (several), 7626 (several), 7627 (many), 
7629 (many tubes), 7630 (1 tube), 7631 (1), 7632 
(few tubes), 7633 (many tubes), 7634 (many 
tubes), 7635 (many tubes), 7639 (few tubes), 
7640 (few tubes), 7641 (fewtubes), 7644(several 
tubes), 7651 (several tubes), 7633 (few), 7634 
(few tubes), 7635 (1 cluster), 7659 (few tubes), 
7664 (few), 7671 (few tubes), 7672 (few), 7674 
(1 tube), 7673 (several), 7701 (1 tube), 7732, 
7733 (1 tube), 7737 (tubes), 7738 (1), 7739 (lit- 
tle), 7743 (several), 7744 (many), 7746, 7747 
(many), 7748 (many), 7749 (many), 7750 (little), 
7752 (much), 7753 (common), 7754 (1 tube), 
7753 (few tubes), 7756 (many), 7738 (much), 
7759 (much), 7761 (common), 7764 (common), 
7763 (little), 7766 (much), 7767 (much), 7768 
(tubes and living common), 7769 (much), 7770 
(common), 7771 (several tubes), 7772 (abun- 
dant), 7773 (common), 7774 (many tubes), 7775 
(common), 7776 (abundant), 7777 (common), 
7778 (abundant), 7779 (common), 7780 (com- 
mon), 7781 (common), 7782 (few), 7783 (com- 
mon). 
Phalarope and Blue Wing stations: 1 (many liv- 
ing), 2 (many), 3 (plentiful), 4 (few living), 5 
(living), 6 (many), 7 (abundant), 8 (many), 9 
(common), 10 (pieces), 11 (quantities), 12 
(several tubes), 13 (common), 14 (few), 13 com- 
mon), 16 (few), 18 (several tubes), 20 (2 tubes), 
21 (2), 22 (several tubes), 23 (few), 24 (1 tube), 
25 (common), 26, 27 (few), 28 (few dead), 29 
(few), 30 (several), 32 (1 tube), 34 (1 tube), 36 
(few tubes), 37 (few tubes), 38 (1 tube), 52 
(few), S3 (few tubes), 62 (few), 63 (many), 64 
(1 tube), 65 (few), 66 (few tubes), 68 (few), 69 
(1 living), 71 (many tubes), 72 (many tubes), 
74 (few tubes), 76 (few tubes), 77 (few tubes), 
78 (1 fragment), 79 (few), 80 (many tubes), 81, 
82 (common), 83 (several), 84, 86, 88 (1 frag- 
ment), 90 ( 1 fragment of tube), 91, 92, 93, 95, 
96, 97, 98, 100 (living), 101 (fragments of tubes), 
107, 108, 109, no, 113, 114 (few), 116, 117 (few 
living), 118 (1 clump of tubes), 121 (common), 
122 (few), 123 (fragments of tubes), 124 (many 
tubes on Venus), 125 (several tubes), 126, 128 
(common), 129, 130 (1 cluster of tubes), 131 (1 
fragment), 132 (common), 133 (shells), 134 (sev- 
eral), 136(1), 137 (fragmentsof tubes), 138 (abun- 
dant), 139, 140, 142 (1 tube), 144 (living com- 
mon), 145 (few), 147 (common), 148 (several), 
149 (common), 150 (tubes), 151 (few tubes), 
15 2 > J S3 (few), 154 (few), 155 (few), 156 (few), 
Hydroides dianthus — Continued. 
137 (few), 158 (few), 162 (2 tubes), 163 (several 
large clusters), 164 (abundant), 165 (many 
tubes), 166 (few). 
Eggs ripen through July and August; if fully 
ripe, they may be removed from the body and 
fertilized. — Treadwell. Verrill records the oc- 
currence of a color variety, which he terms 
“ citrina,” having branchiae of a bright lemon 
yellow color. These specimens are said to be 
found with the preceding, often in the same 
cluster of tubes. 
Spirorbis spirorbis (Linnaeus). 
Verrill and Smith, 1873, p. 621, 323 ( Spirorbis 
borealis ?; also referred to in lists as S. spi- 
rillum). 
As an intertidal species this is one of great abun- 
dance and general distribution, its small white 
tubes often occurring in conspicuous profusion 
on Fucus, less frequently on other algae or va- 
rious solid objects. We have shore records for 
Woods Hole Harbor, Eel Pond, Nobska Point, 
Tarpaulin Cove, Cedar Tree Neck, and Robin- 
sons Hole. It could probably be found locally 
at almost any place where Fucus grows, but it 
is believed to be rare or wanting at the regular 
dredging stations of the Survey. Its reported 
occurrence at these points during the earlier 
seasons of the survey dredging, was doubtless 
due in most cases, at least, to confusion with 
5 . tubceforniis. 
Breeds during May. — Bumpus. Eggs can be 
found during entire summer, being laid in a 
thin membranous tube, inside the calcareous 
tube, in which place they develop. — Tread- 
well. 
Spirorbis tubceformis Bush. 
Vineyard Sound, throughout its length; Buz- 
zards Bay , near its mouth and at inshore stations 
almost to its upper end; dredged in from 2 to 
17 fathoms, chiefly on non-muddy bottoms, 
the tubes being affixed to Phyllophora, Chond- 
rus crispus and occasionally to other plants or 
shells, etc. Abundant on Chondrus, growing 
on stone wall in front of Bureau of Fisheries 
residence. Distribution doubtless more gen- 
eral than the following station list would 
indicate. (See remarks under Spirorbis sp.). 
Fish Flawk stations*: 7523 bis (1 tube), 7536 
(many on seaweed), 7606 (on bryozoa), 7640 
(several tubes), 7666 (several tubes), 7671 
(several tubes), 7673 (several tubes), 7674 
(several on shell), 7690 (many tubes), 7692 
(several tubes), 7693 (several), 7718 (several 
tubes), 7739 (few tubes). 
