CHECK-LIST OF CEPEALOCHOEDATES, 4c.—0GILBY. 71 



(5.) Dimensions ; approximately the greatest authenticated dimensions in 

 length, width (in certain rays), and weight. 



(6.) Uses ; if any. 



(7.) Range ; within the bomidaries of the State, except in certain note- 

 worthy instances, as it is considered that the extralimital distribution is beyond 

 the scope of this work. 



In practice individual modifications of this scheme have of necessity been 

 made occasionally, but these have been introduced as seldom as is consistent with 

 the general trend of the work. 



Finally the reception of Garman's " Plagiostomia," during the current May,' 

 necessitated the addition of references to that work, imperfect though it be. 



For the purpose of facihtating information regarding the geographical distribu- 

 tion of our fishes I propose to divide Queensland into three zoological districts, as 

 foUow : — 



South Queensland {S.Q.). — 



Embracing all the coastline between the mouth- of the Tweed River, our 

 natural boundary, and the Tropic of Capricorn, the islands and reefs outlying there- 

 from and the hinterland to the South AustraUan and Northern Territory marches, 

 with Moreton, Hervey, and Wide Bays, and Port Curtis as its principal inlets. 



Middle Queensland {M.Q.). — - 



Extending in similar fashion from the tropic to 20° S. lat., with Keppel and 

 Shoalwater Bays, Broad Sound, Repulse and Edgecumbe Bays. And 



North Queensland {N.Q.) — ■ 



Comprising York Peninsula and the Gulf of Carpentaria, with their respective 

 islands, reefs, rivers, and hinterlands. 



The following abbreviations will be employed throughout this work : — 



A.M., Austrahan Museum ; B.N.G., British New Guinea ; B.R., Barrier 

 Reef ; D.N.G., Dutch New Guinea ; M.Q., Middle Queensland ; N.Q., North Queens- 

 land ; N.S.W., New South Wales ; N.T., Northern Territory ; O.C, Old Collection 

 of Q.M., Queensland Museum; S.A., South Australia; S.Q., South Queensland; 

 Tas., Tasmania ; T.S., Torres Strait ; Vic, Victoria ; W.A., West Austraha. 



Class I— PROTOCHORDATA. 



Order I— CEPHALOCHORDATA. 

 Family I— BRANCHIOSTOMATID^. " The Lancelets." 



Genus 1— BRANCfflOSTOMA Costa, Cenni Zool. Napol., 1834, p. 49 {lubricum 

 lanceolatum). Syn. — Amphioxus Yarrell 1836 ; Dolichorhynchus Willey 

 1901. 



' The part dealing with the selachians was written during the winter of 1914, bvit was crowded 

 o\it of that year's " Memoirs " from want of space. 



