318 GYMNODONTES. 



Ozodura orsini, Ranzani, Nov. Comm. Ac. Sc. Inst. Bonon. iii. 1839, 



p. 80. 



ursini, Ranzani, I. c. tab. 6. 



Tympanomium planci, Ranzani, I. c, 



Diplancbias nasus, Ranzani, I. c. 



Trematopsis willughbei, i2rt?is«m, /. 0. 



Ortbragoriscus retzii, gbini, rondeletii, blncbii, redi, Ranzani, I, c. 



lunaris, Gronov. Syst. ed. Gray, p. 1G5. 



Solaris, Gronov. I. c. 



Aledon storeri et capeusis, Casteln. Poiss. Afr. Austr. pp. 75, 70. ^ 

 Mola nasus, Steemtnqi Sc Liitken, Overs. Dansk. Vid. Selsk. Fork. 



1863, p. 36. 



retzii, Steenstrup 8f Liitken, I. c. 



? Ortbagoriscus, sp., Swinhoe, Ann. 8f May. Nat. Hist. 1863, xii. p. 225. 



Sunfisb, Couch, Fish. Brit. Id. iv. p. 377, pi. 245. 



Ortbragoriscus ozodura, Hartiny, Verhand. Ak. Wet. Amsterd. 1868, 



pp. 1-48, pis. 1-8. 



Young : — 

 Mola aculeata, Kolreuter, Nov. Comm. Pctropol. x. 1766, p. 337, tab. 8. 



figs. 2 & 3. 

 Diodon mola. Pall. Spiciley. Zool. fasc. -viii. p. 39, tab. 4. fig. 7. 

 Ortbragoriscus bispidus, Bl. Schn. p. 511, 

 Diodon carinatus. 3Ii(ch. Ann. Lye, Nat. Hist. New York, ii. p. 264, 



pi. 5. fig. 1. 

 Acantbosomacarinatum, Dekay, New York, Faun. JRsA. p. 330, pi. 55. 



fig. 179. 

 Ortbagoriscus spmosus, Cuv. Reyne An.; Richards. Voy.'Siilph. Fish. 



p. 125, pi. 62. figs. 10-12; Gatchet, Act. Soc' Linn. Bordeaux, v. 



1832, p. 253. 

 Ortbragoriscus nculeatus, Ranzani, I. e. 

 PaUasia, Nardo, Ann. Sc. Reyno Lombard. Vcnet. x. 1840, p. 112. 



These young fisbes form a distinct family, Molacanthidce, in Mr. Gill's 

 system. 



D. 17-18. A. 14-17. C. 12-16. P. 12-13. Vert. 10/7. 



Body elevated, its depth being always considerably more .than one- 

 half of the total length ; in very young examples the vertical dia- 

 meter even exceeds the longitudinal. iSkin rough, minutely granu- 

 lated. With age a hump is developod above the mouth, topped by 

 an osseous tubercle, which in very young examples is a spine. 

 Dorsal and anal fins narrow, high, becoming comparatively shorter 

 with age. A series of more or less conspicuous ossifications on the 

 posterior edge of the caudal fin. Very young examples with scat- 

 tered spines, some of which are permanent through life as osseous 

 tubercles — for instance, at the throat. Eye much nearer to the upper 

 prpfile than to the lower. 



A pelagic fish, probably inhabiting most of the seas of the tem- 

 perate and tropical regions. 



a. Stuffed, 31 feet long. Ireland. Presented by the Earl of Ennis- 



killcn. 

 /;. Stuffed. 7 feet long. Portsmouth. Presented by Major Purlby 



and John Fox, Esq. 



