^.DPIPZEItTIDIZX: 



ADDITIONS AND CORRECTIONS. 

 Page 3: Under Myxine australis. Add to synonymy: 



Myxine avstralis, GuTXTHER, Challenger Report, vi, 1X80,23. 



Page 6: For the Key to the Squali, substitute the following, by Dr. Gill: 



KEY TO THE DEEP-SEA FAMILIES OF ANARTHROUS SQUALL 



I. Anal fin lacking; vertebrae tectospondylic. 



A. No spines in trout of dorsal tins ScymnorhiniDjE 



B, Bach dorsal tin preceded by a spine Spinacid^b 



II. Anal tin present; vertebra' asterospondylic. 



A. Dorsal tins two, without antecedent spines, tlie first above or behind the ventrals. . .Scyli.iouiiixidjE 



B. Dorsal tins two, without spines, the lirst in, advance of ventrals; caudal erescentic, with a keel on 



each side of its stem; gill openings enormous Cetobhinid^! 



Page 7: Scymnus lichia. Vinciguerra obtained three examples in the Gulf of Genoa, 

 July 26, 1879, at a depth of about GOO meters (Crociere delle Violante, 121). 



Page8: Somniosus microcephalus. According' to Giittther, Strom and Collett, Somniosus 

 microcephalus is found off the coasts of Norway at depths of 150 to 300 fathoms. 



Page9: Paracentroscyllium ornatum, Alcock, 111. Zool. Investigator, Fishes, PI. viii, 

 fig. 2. 



Page 10: Etmopterus spinax. Add to synonymy: 



Spinas Gunneri, Reinhakdt, Kon. Dansk. Vid. Selsk. Forh., 1824-27 i 1828), p. xvi. 



According to Strom, this form occurs off Norway at depths of from 70 to 300 fathoms 

 [Kon. Norsk. Vid. Selsk. Skr., 1883, 45]. 



Vinciguerra obtained twenty-two specimens in the Gulf of Genoa, at about 600 meters, 

 July 26, L879 (Crociere delle Violante, 20). 



Strom reports it from 70 to 300 fathoms in Trondhjems Fiord [Norsk. Vid. Selsk. Skrilt., 

 1884, 1 1. 1 



Page 11: After Gentroscyllium add: 



PARACENTROSCYLLIUM, Alcock. 



Paracentro8cyllium, Alcock, Ann. ami Mag. Nat. Hist.. L889, November, 379; Bathybial Fishes of the Bay of 

 Bengal, 1890, 5. 



Two dorsal tins, each witli a strong spine. No anal tin. .Month erescentic, with a 

 direct oblique groove at each angle. Teeth equal in both jaws, minute, simple, monocuspid, 

 straight. No membrana nictitans. Gill openings rather wide. Integument smooth. — Alcock. 



Three specimens of the single species, /'. ornatum, Alcock, loc. tit., were found in the 

 Bay of Bengal, "Swatch of No ground," 285 to to.") fathoms, by the Investigator. 



Page 1-: Centrophorus. For Centrophorus granulosus read G. uyatus (Rafinesque). 

 Bellotti demonstrates that Acanthias uyatus (Raf.), M. & II. is the young of Centrophorus 

 granulosus, and states the young and old are abundant about Nice. 



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