73 2 
bulletin oe the bureau oe fisheries. 
Didemnum lutarium — Continued. 
Fish Hawk stations: 7522 (abundant), 7522 bis 
(small patches), 7524 bis (few small), 7528 
(many), 7533 bis (several patches), 7537 (few 
small patches), 7541 bis (little), 7565 bis (1 
small mass), 7572 (small mass), 7587 (1 small 
mass), 7604 (r small piece), 7605, 7606, 7607 
(covering stones and Modiolus shells), 7608 
(common), 7-609 (2 patches), 7612 (1 small 
patch), 7613 (few masses)!, 7620 (1 mass), 7625 
(several masses), 7626 (several masses), 7627 
(several patches), 7629 (few masses), 7632 (1 
patch), 7633, 7634 (few masses), 7639 (1 mass), 
7644 (small mass), 7659 (1 large mass), 7742 
(little)t, 7746 (little), 7749 (much), 7751 (lit- 
tle), 7752 (little), 7753 (much), 7754 (little), 
7755 (several colonies) 7757 (much), 7759 (very 
much), 7760 (much), 7763 (much), 7765 
(much), 7766 (little), 7768 (much), 7769 (lit- 
tle), 7772 (little), 7773 (little), 7774 (little), 
7775 (much), 7777 (much), 7778 (much), 7780 
(much), 7781 (little), 7782 (very little), 7783 
(very little). Supplementary stations (1909): 
7627, 7629, 7634, 7636, 7643, 7648, 7657, 7659, 
7672. 
Phalarope and Blue Wing stations: 1 (few small 
masses), 2 (small piece), 5 (many patches), 6 
(1 patch), 7 (few patches), 8 (1 small colony), 9 
(1), 10 (few crusts), n (x small colony), 12 (1 
small colony), 15 (1 colony), 24 (r colony), 32 
(small patch), 33 (few), 34 (few), 36 (1 small 
mass), 45 (1 patch), 51 (few), 56 (few), 58 (1 
colony), 64 (several masses), 69 (1), 74 (1 large 
colony), 77 (common), 81 (several masses), 83 
(several masses), 85, 86, 109, 112, 113,115 (few), 
116, 117 (common), 118 (common), 121 (com- 
mon), 124 (few masses), 128 (common), 130 
(quantities), 131 (common), 133 (1 colony), 
134 (many colonies), 135 (abundant), 136 
(common), 137 (abundant), 141 (abundant), 
142 (abundant), 144 (several), 145 (few), 148 
(common), 149 (common). Supplementary 
stations (1909): 83, 131, 146. 
Family Synoicid^. 
Aplidium pallidum (Verrill). 
Verrill and Smith, 1873, p. 705, 496. (Amarce- 
cium pallidum)', Van Name, 1910, p. 400. 
Off Buzzards Bay, 25 fathoms, gravel; ” “ south 
of Gay Head, 10 fathoms, stony.” — Verrill. 
Vineyard Sound, near Cuttyhunk, at Fish 
Hawkstation 7690! (gfathoms, stony bottom). — 
Survey. 
Amaroucium pellucidum (Eeidy). [Chart 195.] 
Verrill, 1871, p. 290; Verrill, 1872; Verrill and 
Smith, 1873, p. 703, 401, etc. ( Amarcecium 
pellucidum)-, Van Name, 1910, p. 404. 
Abundant throughout the eastern half of Vine- 
yard Sound; in the western half confined to 
inshore stations; recorded but twice from 
Buzzards Bay; dredged in 1 to 17 fathoms, on 
bottoms of sand, gravel, and stones.— Survey. 
Fish Hawk stations: 7521 (few colonies), 7521 bis 
(very abundant), 7522 (few colonies), 7524 
(very abundant), 7525 (very abundant), 7525 
bis (abundant), 7526 (few pieces), 7527 (abun- 
dant), 7528 (very abundant), 7529 (1 mass), 7531 
bis (1 colony), 7532 (great abundance), 7532 
bis (many), 7533 bis (few), 7535 (abundant), 
7536 bis (few), 7538 (very abundant), 7538 bis 
(very much), 7539 (numerous), 7540 (few), 
7541 (abundant), 7541 bis (several colonies), 
7542 bis (few), 7544 (abundant), 7544 bis 
(small fragments), 7546 (small piece), 7547 
(many), 7550 bis (little), 7552 (few), 7553 
(abundant), 7553 bis (much), 7554 bis (few 
colonies), 7558 (few masses), 7560 (few small 
pieces), 7563 (1 piece), 7565 (1 piece), 7565 bis 
(little), 7595 (1 piece), 7645 (small mass), 7732 
(few masses), 7737 (1 large clump), 7738 (sev- 
eral small clumps), 7739 (3 clumps), 7745 (very 
little), 7749 (much), 7750 (very much), 7751 
(much), 7752 (very much), 7754 (much), 7755 
(few), 7757 (1 colony), 7759 (much), 7760 
(much), 7764 (common), 7767 (much), 7768 
(much), 7769 (little), 7782 (little). Supple- 
mentary station (1909): 7672 (small colony). 
Phalarope and Blue Wing stations: 2 (abundant), 
3 (abundant), 4 (few), 9 (several colonies), 10 
(quantities), 11 (1 colony), 12 (several pieces), 
13 (2 colonies), 22 (1 small colony), 25 (1 small 
colony), 27 (1), 34, 37 (few), 38 (1 mass), 44 
(several pieces), 46, 47 (few small), 51 (few), 
56 (few), 62 (abundant), 63 (abundant), 66 
(few colonies), 69 (1 mass), 74 (many), 75 (few 
colonies). 
“ This species exists in two very dissimilar forms, 
which have been considered distinct species 
(the typical A. pellucidum, and A. constella- 
tum Verrill), but which are in reality not even 
true subspecies, as is shown by some colonies 
which in one part have the typical pellucidum 
characters, while in the remainder of the 
colony the constellatum characters are equally 
well developed.” — Van Name. 
