32 Smith and Harger — St. G-eorge's Banks Dredgings. 



thii'd segment of the abdomen. In our specimens the upper process 

 from this margin is armed with four or five teeth above and at the 

 tip, while the lower process is armed with five or six teeth similarly 

 situated, but with no teeth on the lower margin except just at the 

 tip. In Kroyer's figure (Gronlands Ampfipoder, plate ii, figure 8) 

 the upper process is represented as terminating in a single tooth and 

 the lower process as toothed along both sides ; Boeck's description 

 agrees with this except that he says there are two teeth at the tip of 

 the upper process. 



It is not uncommon on hard bottoms in from 5 to 50 fathoms in 

 the Bay of Fundy. We have also dredged it in Casco Bay and have 

 received it from the Gulf of St. Lawrence, where it was dredged by 

 Mr. Whiteaves. 



Acanthozone cuspidata Boeck. 



This species is quite common on hard, and especially on spongy 

 bottoms in 5 to 40 fathoms in the Bay of Fundy, although it is not 

 mentioned by Stimpson in his work on Grand Menan. We have also 

 dredged it in Casco Bay, and Mr. Whiteaves has obtained it in the 

 Gulf of St. Lawrence. It ranges to Greenland, Spitzbergen and 

 Finmark. 



BybliS Gaimardi Boeck (Kroyer Bp.) 



We have frequently dredged this species in Casco Bay and the 

 Bay of Fundy, on muddy bottoms in 10 to 60 fathoms. It extends 

 north to the Gulf of St. Lawrence (Whiteaves), Labrador (Packard), 

 and, according to Boeck, to Greenland, Iceland, Spitzbergen and 

 Norway. The Ampelisca Gahnardi of Bate, and Bate and West- 

 wood, is not this species but a true Ampelisca. 



All the species of this sub-family are undoubtedly tube dwellers. 

 Lilljeborg noticed the habit in HaploOps ; it has been observed in 

 species of Ampelisca by Professor Verrill and myself. In this 

 species, the glands which secrete the cementing fluid are situated 

 principally in the meral and basal segments of the third and fourth 

 pairs of thoracic legs. 

 Xenoclea megachir Smith, sp. nov. 



Plate IV, figures 1 to 4. 



Male. Eyes large, black, very slightly elongated, and approaching 

 closely the edges of the triangular prominence of the inferior angle 

 of the front margin of the head. Peduncle of the anteninila' about 

 as long as the head and the first two segments of the thorax, the 

 second segment longest, the first and third about equal in length, 



