7O2 



BULLETIN OF THE BUREAU OF FISHERIES. 



Zirphaea crispata Continued. 



Cuttyhunk at Phalarope station 33* (5 fath- 

 oms, hard mud and gravel); i shell taken at 

 Fish Hawk station 7718* (14 fathoms, sand and 

 shells). 



Family 



Teredo navalis Linnaeus. Ship-worm. 



Gould, 1870, p. 28; Verrill and Smith, 1873, p. 

 669, 384, etc.; Ball, 1889, p. 74. 



Local waters generally, infesting piles, buoys, 

 pound stakes, lobster pots, and every sort of 

 floating or submerged woodwork. Of great 

 abundance and rapid growth, constituting a 

 serious pest to shipping and the fisheries. 

 Pieces of wood inhabited by this mollusk 

 dredged by the Survey in Vineyard Sound at 

 13 to 15 fathoms (Fish Hawk stations 7564* and 

 7565). In the former of these cases, at least, 

 a living specimen was found. 



According to Verrill, the eggs are exceedingly 

 numerous, probably amounting to millions. 

 These are retained in the gill cavity during 



Teredo navalis Continued. 



the first stages of development; they are liber- 

 ated in May and probably throughout the rest 

 of the summer, larvae being taken at the sur- 

 face in May and June. (For a good account 

 of the natural history of this animal, see Verrill 

 and Smith, 1873, p. 383-387.) 



Teredo megotara Hanley. 

 Gould, 1870, p. 31; Verrill and Smith, 1873, p. 



670, 387, etc.; Dall, 1889, p. 74. 

 Newport and New Bedford, occurring in cedar 



buoys and floating pine wood. Gould. 

 Teredo thomsoni Tryon. 

 Gould, 1870, p. 32; Verrill and Smith, 1873, p. 



670, 387, etc.; Dall, 1889, p. 74. 

 Found in great numbers on marine railway at 



New Bedford; also in cedar buoys. Gould, 



after Tryon. 



Teredo sp. undetermined. 



Vineyard Sound, at Fish Hawk station 7550; 12 

 fathoms. (Probably one of the foregoing 

 species.) 



Class AMPHINEURA. 



Family ISCHNOCHITONID^E. 



Trachydermon ruber Carpenter. 



Gould, 1870, p. 260 (Chiton ruber; not listed for 

 this region); Verrill and Smith, 1873, p. 662, 

 399, etc. (sometimes referred to as Leptochiton 

 ruber); Dall, 1889, p. 172. 



"Rare and local in the colder outer waters south 

 of Cape Cod"; living on rocks which are cov- 

 ered with red nullipores; not listed specifically 

 for this region. Verrill. Mr. Gray reports its 

 occasional occurrence in the "gutters" near 

 Hadley Harbor. A single specimen was dredged 

 by the survey at Phalarope station 116* (near 

 Penikese Island, 4 fathoms, gravel and sand). 



Chatopkura apiculata Carpenter. [Chart 161.] 

 Gould, 1870, p. 258 (Chiton apiculatus); Verrill 

 and Smith, 1873, p. 661, 399 (also referred to as 

 Leptochiton apiculatus); Dall, 1889, p. 172. 

 Nantucket. Gould. Vineyard Sound and Buz- 

 zards Bay. Verrill. Distribution general 

 throughout the eastern half of Vineyard Sound; 

 in Buzzards Bay and the western half of the 

 Sound it is restricted to the inshore stations. 

 Survey. Dredged in 2 to 1 5 fathoms, on various 

 bottoms; more frequent among stones or shells, 

 and less common where mud is present. This 

 species, when alive, is invariably found cling- 

 ing to other solid objects. Nearly all of the 



Chcetopleura apiculata Continued. 



specimens dredged were living. One was col- 

 lected by Mr. J. W. Underwood on a shell occu- 

 pied by Pagurus pollicaris, taken along shore 

 at Nobska Point. 



Fish Hawk stations: 7522 (2), 7522 bis (2), 7523 

 (few), 7523 bis (few), 7524 (few), 7524 bis (i), 

 7527 (few), 7528 (few), 7530 (i), 7530 bis (2), 

 7531 bis (few), 7533 bis (i), 7536 (i), 7537 

 (numerous), 7537 bis (i), 7539 (i), 7541 (2), 7544 

 (few), 7545 (few), 7547 bis (2), 7550 (i), 7551 bis 

 (many), 7554 bis (i), 7560 (i), 7572 (i), 7581 

 (few), 7621 (few), 7626 (i), 7628 (2), 7630 (i), 

 7634 (several), 7635 (several), 7648 (several), 

 7659 (few), 7672, 7675 (i), 7743 (i), 7744 (2), 

 7745 (i). 7746 (i small), 7753 (i), 7757 (i), 

 7760 (i), 7761 (i), 7762 (several), 7766 (2), 7768 

 (i), 7769 (2), 7773 (i), 7776 (2), 7777 (few), 

 7778 (few), 7780 (i), 7783 (several). 



Phalarope stations: 2 (2), 5 (2), 7 (i), 9 (i young), 

 12 (2), 15 (i), 32 (i), 52 (several), 62 (i), 65 (2), 

 68 (i), 69 (i), 70 (abundant), 71 (abundant), 72 

 (many), 81 (few), 82 (several), 83 (2), 84 (sev- 

 eral), 107 (i), no (i small), 114 (i), 118 (i), 123 

 (2), 128 (2), 132 (many), 134 (i), 141 (i), 142 

 (i), 144 (common), 145 (few shells), 147 (i), 148 

 (several), 149 (several shells), 150 (i), 151 (i), 

 158 (few), 167 (several). 



