328 



REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



mission, aud two more specimens, both females, were obtained on eel- 

 grass in Casco Bay! iu 1873. Five specimens were obtained adhering 

 to dried specimens of Acanella from 150 fathoms, Western Bank!, in 

 1878, and a sixth, iu 53 fathoms, on Brown's Bank !, in lat. 42° 50' K, 

 Ion. 650 10' E., by Captain J. Q. Getchell, of the schooner ' Otis P. Lord,' 

 in the same year. In 1879 a specimen was obtained adhering to Acan- 

 thogorgia armata, by Captain George A. Johnson and crew of the schooner 

 'Augusta n. Johnson,' on Western Bank!, in lat. 43° 15' K, Ion. 50^ 

 20' E., 200 fathoms. These specimens were, as has been mentioned, 

 considerably larger than those at first obtained. Kroyer's specimens 

 were from a depth of 50 fathoms, at Godthaab, Southern Greenland, 

 and according to M. Sars the species is abundant on the coast of Fin- 

 mark among Hydroids in the coralline zone. G. O. Sars records M. 

 Bodckii Kroyer, which he regards as scarcely differing from this species, 

 at the harbor of Eeikjavik, Iceland. 



Specimens examined. 



2144 

 1936 



Locality. 



Casco Bay, Me 



Bay of Fundy, Mo 

 Brown's Bauk 



Western Bank . 

 Western Bank. 



150 

 200 



Bottom. 



Eel-grass 



On Acanella . . . 



On Acanthogor- 



gia armata. 



When col- 

 lected. 



,1873 

 ,1872 

 ,1878 



,1878 

 .1879 



Keceivedfrom- 



TJ.S. Fish Com. 



....do 



Capt. J. Q. 

 GetcheU. 



Capt. G. A. 

 Johnson. 



Speci- 

 mens. 



Ifo. Sex. 





Dry. 

 Alo. 



Ale. 

 Ala 

 Dry. 



Dry. 

 Dry. 



IV.— MUNNOPSID^. 



In this family the body consists of two more or less distinct divisions, 

 the first consisting of the head and anterior four thoracic segments, and 

 the second of the last three thoracic segments, and the pleon, which is 

 consolidated into a single segment, convex above. The ej^es are want- 

 ing. The antennulae are much shorter and smaller than the antennae, 

 and have their basal segment lamelliform. The antennae are much elon- 

 gated, with a five-jointed peduncle, of which the first three segments 

 are short and the last two elongated and tipped with a long multi- 

 articulate flagellum. The maxillipeds have their basal segments flat- 

 tened and operculiform, covering the other mouth parts, and furnished 

 with a large external lamella and a five jointed palpus. The first pair 

 of legs are shorter than the three following pairs and imperfectly pre- 

 hensile. The next three pau's are ambulatory and usually greatly elon- 

 gated. The last three pairs of legs, or at least the fifth and sixth pairs, 

 are different in form from the preceding, and fitted for swimAing, with 

 some of the distal segments flattened and provided with marginal cilia 



