394 
EXPLANATION OF PLATES. 
FIGURE. 
20, 
PLATE 25, 
21, 22. Loligo Pealii, Lesueur, with pen,and horny ring 
ofa sucker. United States, L : : 
Loligo (Loliguncula) brevis, Blainv. United States, 
. Sepioteuthis stenodactyla, Grant. Mauritius, 
. Sepioteuthis lunulata, Fer. et d’Orb. New Guinea, 
. Idiosepius pygmeeus, Steenst. Zamboango, . 
. Rossia Owenii, Ball, Great Britain, 
. Cranchia-scabra, Leach. ~ W. Africa, 
. Sepiadarium Kochii, Steenst. Hong Kong, . : 
. Loliolus affinis, Steenst. Indian Ocean, 
PLATE 26. 
32. Chiroteuthis Veranyi, Fer. Mediterranean Sea, 
34. Histioteuthis Bonelliana, Fer. Mediterranean Sea, 
. Loligopsis guttata, Grant. Indian Ocean, 
37. Thysanoteuthis rhombus, Troschel. Mediterranean, 
. Gonatus amcena, Moller. Greenland, 
40. Onychoteuthis Krohni, Verany. Mediterranean, 
. Onychia Caribzea, Les. West Indies, 
Verania Sicula, Ruppell and Krohn. Medit., 
PLATE 27. 
3. Enoploteuthis Smithsii, Leach. W. Africa, 
45. Ommatostrephes sagittatus, Lam. Europe, New En- 
gland, . ‘ 
47. Hemisepius typicus, Steenstr. ‘Cape of Good Hope, 
49. Sepia officinalis, Linn. Europe, 
. Sepia elongata, d’Orb. ; ;,pen,,. Red Sea, . 
52. Spirula Peronii, Lam. Warm Seas, 
. Spirula Peronii; - part of the whorl broken away, showing 
the septa and siphuncle, 
. Nautilus Pompilius, Linn. Amboina, 
PLATE 28. 
56. Teuthopsis Bunellii, Desl. Lias, France, 
. Leptoteuthis gigas, Meyer. Oxford Clay, Solenhofen, 
. Beloteuthis subcostata, Munst. U. Lias, Wurtembure, - 
. Phylloteuthis subovata, Meek and Hayden. U. Cret., 
Dakotah, 
, tS en ; folate: Gaby Cret., ‘California; 
Celzno conica, Wagner. Tes Solenhofen, 
: patidded lata, Miinst. Lias, Europe, - . 
65. Belosepia sepioidea, Blainv. Eocene, Europe, 
. Plesioteuthis prisca, Wagner. Lias, Solenhofen, 
. Orthoceras- -plaincanalicwlatunt, “Sandb. afi Devonian, 
Nassau, 
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