1754 Bulletin 47, United States National Museum. 



than \ length, and in the young the vertical diameter exceeding the 

 longitudinal. Form varying much with age, the body becoming more 

 elongate, the fins comparatively shorter, the eye much smaller, and a 

 hump being developed above the mouth, topped by an osseous tubercle. 

 Dark gray; sides grayish brown, Avith silvery reflections; belly dusky; 

 a broad blackish bar running along the bases of the dorsal, caudal, and 

 anal fins. Pelagic, inhabiting most temperate and tropical seas, swim- 

 ming slowly about, near the surface, the high dorsal above the surface. 

 Common northward to England, Cape Cod, and San Francisco; rare in the 

 West Indies. It reaches a weight of 300 to 1,500 pounds. The largest 

 specimen known to us was taken at Redondo Beach, California, in June, 

 1893, and mounted by Mr. T. Shooter, of Los Angeles. This was 8 feet 2 

 inches long and weighed in life 1,800 pounds. The Pacific Ocean form, 

 which ranges from San Francisco to Mazatlan, seems to be fully identical 

 with Mola mo/a. (Eu.) (woZa, a millstone.) 



Tetrodon mold, LINNAEUS, Syst. Nat., Ed. x, 334, 412, 1758, Mediterranean ; after Ostradon 



cathetoplateus subrotundus, ARTEDI, Genera, 61, 1738. 

 Tetrodon lune, LACEPEDE, Hist. Nat. Poiss., I, 509, 1798. 



Mola aculeata, KOLHEUTER, Nov. Comm. Petropol., x, 1766, 337, pi. 8, figs. 2 and 3. 

 Orthragoriscus hispidus, BLOCK & SCHNEIDER, Syst. Ichth., 511,1801. 

 Orthragoriscus or Luna piscis, KONDELET, De Piscibus, 424. 

 Diodon carinatus, MITCHILL, Ann. Lye. Nat. Hist. New York, n, 1815, 264, pi. 5, fig. 1, New 



York. 



Acanthosoma carinatum, DE KAY, New York, Fauna: Fishes, 330, pi. 55, fig. 179, 1842. 

 Mola rotunda, CUVIER, Tableau El em. Nat. Hist., 323, 1798 ; after Tetrodon mold, LINNJEUS ; 



JORDAN & GILBERT, Synopsis, 865, 1883. 



Orthagoriscus mola, BLOCK & SCHNEIDER, Syst. Ichth., 510, 1801. 

 Orthagoriscus fasciatus, BLOCK & SCHNEIDER, Syst. Ichth. ,511, 1801. 

 Cephalus brevis, SHAW, Gen. ZooJogy, v, 437, pi. 175, 1804. 

 Cephalus pallasianus, SHAW, Gen. Zool., v, 440, 1804. 

 Orthagoriscus spinosus, CUVIER, K6gne Anim., 1817. 

 Cephalus Orthagoriscus, Kisso, Eur. Merid., in, 173, 1826. 

 Ozodura orsini, KANZANI, Nov. Comm. Ac. Sci. Iiist. Bonon., in, 82, 1839, Mediterranean 



Sea; KANZANI, I.e., pi. 6, 1839. 



Tympanomium planci, HANZANI, I.e., table, 1839, Adriatic Sea. 

 Diplanchias nasus, KANZANI, I. c., table, "in niarei sicu!6." 

 Trematopsis willugbei, KANZANI, I. c., table, in oceano. 

 Orthragoriscus retzii, KANZANI, I. c.. table, no locality. 

 Orthragoriscus ghini, KANZANI, I. c., table, Mediterranean Sea. 

 Orthragoriscus rondeletii, KANZANI, I. c., Mediterranean Sea. 

 Orthragoriscus blochii, KANZANI, I. c., "in rnari oceano." 

 Orthragoriscus alexandrini, KANZANI. I. c., Adriatic Sea. 

 Orthragorucus redi, KANZANI, I. c., Mediterranean Sea. 

 Orthragoriscus oculeatus, KANZANI, I. c., no locality. 



Orthragoriscus lunaris, GRONOW, Cat. Fishes, Ed. Gray, 165, 1854, Mediterranean Sea. 

 Orthragoriscus Solaris, GRONOW, Cat. Fishes, Ed. Gray, 165, 1854, Mediterranean Sea. 

 Orthragoriscus elegans, KANZANI, I.e., Atlantic Ocean. 

 Orthragoriscus battarce, KANZANI, I. c., Adriatic Sea. 

 Aledon storeri, CASTELNAU, Poiss. Afr. Austr., 75, 76. 

 Aledon capensis, CASTELNAU, I. c. 



Pallasia pallasi, N'ARDO, Ann. Sc. Kegno Lombard. Venet., x, 112, 1840. 

 Orthagoriscus analis, AYRES, Proc. Cal. Ac. Sci., n, 1854, 31, fig. 54, San Francisco. 

 Mola nasus, STEENSTRUP & IATTKEN, Overs. Dansk. Vid. Selsk. Forh., 36, 1863. 

 Mola rctzii, STEENSTRUP & LUTKEN, I. c. 

 1 Orthagoriscus, sp., SWINHOE, Ann. & Mag. Nat. Hist., xn, 1863, 225. 



