Zoological Society. 485 



other things, in opposition to the statements of Souleyet and of 

 Alder and Hancock, that it does possess jaws, which have been over- 

 looked by these authors on account of their being almost colourless, 

 just as they were overlooked by Burmeister in Phyllodesmium, where 

 Dr. Bergh has proved their existence on an earlier occasion. The 

 same circumstance has caused Alder and Hancock to overlook the 

 teeth, which are arranged, not as in Glaucus, but as in Bendronotus, 

 only there are not so many as in Bendronotus. Dr. Bergh's second 

 paper gives a careful diagnosis of the family of Pleurophyllidse, of 

 which he describes a new form, Sancara quadrilateralis, Bgh., par- 

 ticularly distinguished by the rhinophores being foliated only on one 

 side. Of this new genus the author gives an anatomical description 

 occupying forty pages, with two plates, of which we shall men- 

 tion a few details. Dr. Bergh has found spicula in the envelope of 

 several Pleurophyllidae which were formerly supposed not to possess 

 them. He carefully describes the jaw, which is very like the 

 basal part of the jaw of JEolidia, but exhibits nothing parallel to 

 its broad lamelliform part. The outside of this jaw was covered 

 with a peculiar membrane (showing cellulse of irregular shape, and 

 mostly placed in quincunx, with a clear nucleus) — a covering which 

 the author says that he has found on the jaws of many JEolidice. 

 The structure of the mouth was like that of JEolidia ; but the ac- 

 count given of this by Dr. Bergh differs considerably from that by 

 Alder and Hancock. The principal divisions of the liver, after having 

 given off branches to the side folds, seem, according to Dr. Bergh, to 

 terminate near the edge of the mantle, near the urticating cells, which 

 consequently are here placed in the same near vicinity to the last 

 ramifications of the liver, in which Dr. Bergh had discovered them 

 some years ago in JEolidice. The organs of generation are herma- 

 phroditic, as in all Pleurophyllidse, those of the different sexes united 

 into one gland. 



PROCEEDINGS OF LEARNED SOCIETIES. 



ZOOLOGICAL SOCIETY. 



Dec. 13, 1864.— John Gould, Esq,, F.R.S., in the Chair. 



Characters of New Species of Crustaceans discovered 

 by J. K. Lord on the Coast of Vancouver Island. 

 By C. Spence Bate, F.R.S. 



[The following new species of Crustaceans, collected on the east 

 side of Vancouver Island, were kindly named, described, and figured 

 for me by Mr. Spence Bate. Some of them were dredged in from 

 8 to 10 fathoms of water ; the rest were collected between tide-marks. 



Mr. Spence Bate says, in speaking of the collection generally, 

 " The extremely opposite and varied localities in which many of the 

 species here represented have hitherto been found, suggest the idea 

 that Vancouver Island corresponds with the extreme limit between a 



Ann. § Mag. N. Hist. Ser. 3. Vol.xv. 33 



