BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



729 



Class UROCHORDA (TUNICATA)." 



7560 (abundant)*, 

 7596 (i), 759 8 ( x ). 



Family MOLGULID.I; 



Molgula arenata Stimpson.b [Chart 190.] 



Gould, 1870, ]). 21 ; Verrill and Smith, 1873, p. 

 699, 419, etc. 



Region of Nantucket and Marthas Vineyard. 

 Gould. "Vineyard Sound and Buzzards Bay, 

 5 to 15 fathoms, sand and grave!."- Verrill. 

 Western half of Vineyard Sound, fairly fre- 

 quent; Crab Ledge, at one station; not re- 

 corded for Buzzards Bay; dredged in 2 to 25 

 fathoms, on bottoms of sand, gravel, and 

 stones. Survey. 



Fish Hawk stations: 7532*, 

 7561 (few), 7579, 7584 (2) 

 7609 (3 small)*, 7683*, 7702. 



Phalarope stations: 32, 33*, 37, 64 (several), 66 

 (many), 67 (r), in (i). 



? Molgula citrina Alder & Hancock. 

 Crab Ledge at Fish Hawk station 7606 (16 fath- 

 oms, gravel and stones), i specimen.* 



? Molgula koreni Traustedt. 



Vineyard Sound, at Fish Hawk stations 7524* and 



7563, 8 to 10 fathoms, gravel and stones. 

 Molgula manhattensis (DeKay). [Chart 191.] 



Gould, 1870, p. 25 (Ascidia manhattensis; no local 

 records); Verrill and Smith, 1873, p. 699, 311, 

 etc.; Bumpus, i8o8a; Bumpus, iSgSb; Met- 

 calf, 1900. 



Abundant on piers at Woods Hole, Vineyard 

 Haven, and New Bedford. Recorded also 

 from Nobska Point, Menemsha Pond, Katama 

 Bay (abundant on eelgrass), Wareham River, 

 West Falmouth Harbor, Round Hill Point. A 

 very common species, with great diversity of 

 habitat, being found in shallow waters near 

 shore, as well as at considerable depths. 

 Dredged by the Survey at scattered stations 

 throughout Buzzards Bay; in Vineyard Sound 

 seldom found far from land. Taken in 2 to 15 

 fathoms, on every sort of bottom. Large clus- 

 ters composed of this species and Styela partita 

 are sometimes encountered. 



Fish Hawk stations: 7522 bis, 7524 bis (few), 7554 

 bis*, 7564 bis*, 7612*, 7614, 7615 (several clus- 

 ters), 7616, 7619*, 7627 (several), 7653. Sup- 

 plementary stations (1909): 7648 (?), 7659 (?). 



Phalarope and Blue Wing stations: i (several), 

 5*, 8, 9, 12, 13, 20, 21, 24 (i), 32 (few), 61*, 67 

 (i), 76, 83 (2), 85, 86, 87 (many), 100 (?), no, 

 117 ^few), 121 (few), 130 (i), 134 (i), 145 (i). 



Eggs ripe during May and probably throughout 



the summer. Bumpus. 103 (?). 



a Specimens from points designated by aa asterisk (*) were identilk-d 1-y Prof. AV. E Ritter; those from points desicnated 

 by a dagger (t) by Dr. W. G. Van Name. 

 6 See note under Eugyra glu'inans. 



clt is not unlikely that some cf the specimens listed ia the field as .!/< Igula ..-.-> ata likewise belong here. " Exu-m.'liy these 

 two species are very much alike. H,*ntifuatioii i.f preserved specimens is hardly possible without dissection." Ritter. 



.' Molgula pannosa Verrill. 

 Verrill, 1871, p. 55. 



Off West Chop, at Fish Hawk station 7524*, i 

 specimen doubtfully identified. Survey. 



Molgula papillosa Verrill. 



Verrill, 1872; Vcrrill and Smith, 1873, P- 699, 



495- 



"Off Mart liar, Vineyard, 10 fathoms, stony," 

 occurring "sparingly. ' ' 



? Molgula pcllucida Verrill. 



Verrill and Smith, 1873, p. 699, 426. 

 No definite local records, though this region lies 

 within the range of the species as given by 

 Verrill. 



:' Moljula prouuctu Stiinpson. 



Gould, 1870, p. 21 (no local records); Verrill and 

 Smith, 1873, p. 699, 502, etc. 



"Off Buzzards Bay, 25 fathoms;" this species 

 " was dredged in some numbers on a bottom of 

 fine sand, with some mud." (The foregoing 

 record scarcely warrants the inclusion of this 

 species in the fauna of the region.) 



Mohjula sp. undetermined. 



Unidentified specimens referable to this genus 

 were taken at Fish Hawk stations 7554, 7622, 

 and 7686, and Phalarope station 160; also at 

 1909 repetitions of 7648 and 7671. 



Bostrichobranchus molguloid.es Metcalf. 



Metcalf, 1900, p. 583 (sp. nov.). 



" Collected by Vinal N. Edwards, from soft mud, 

 at a depth of 9 fathoms, in Buzzards Bay, near 

 Woods Hole, Mass." A number of specimens 

 taken . 



Eugyra pilularis Verrill. 



Verrill, 1872 (Molgula pilularis and Eugyra pilu- 

 laris); Verrill and Smith, 1873, p. 700, 509. 



"Off Gay Head . . . , 19 fathoms, soft mud," 

 covering itself with a thick coating of fine sand 

 or mud. Verrill. 



Eugyra glutinous (Moller). 1 ' [Chart 190.] 



Dredged by the survey at a number of stations in 

 vicinity of Cuttyhunk, both in the Sound and 

 the Bay; 3 to 17 fathoms, sandy bottom. 

 Fish Hawk stations: 7686 (?>, 7687*, 7688 (?), 



7689 (?) 

 Phalarope stations: 30*, 99*, 101 (?), 102 (?), 



