Measurements of Sthenoteuthis megaptera and 8. pteropus (in inches). 
S.megap-| S. pter- 
tera. opus. 
N. Scotia. | Bermuda. 
Length, tip of tail to end of dorsal arms,--.--.----| 25:5 27°5 
tip of tail to end of 3d pair _...---_.----- - 29°5 
‘ tovend of tentacular-anms, 22222 22-2" =-e 24 3 a 
SEN LOUDASCTOL SUNT Stee eater eae oe oe 19 20°5 
irom base of arms to mantle; --2 22222-22225 _-% 5 6°25 
Tip of tail to edge of mantle (above), a Re) es eee 14 14-75 
(below) 2-22 2--o seas 13 14°5 
Tip se tail to center o OVO ;oes 32 Stee le No Ee ad: 18°5 
Length of caudal fin (tip to insertion), ---.-------- 6 6°75 
Bre AGthnOL CAG a) eit wean See eee oe a a eee 13°5 Ie} 
Breadth between lateral insertions, ._-.__--------- 2°33 2 
End of body to outer angle of fin,.__..-.. .------- 7 1:25 
Front edge of fin, from outer angle to insertion, ---- 6°5 5:5 
Cinetmierencerotbody,s--25) sneer ase oe eee 12°5 11-5 
IBReACUaRO LOU ps ome ae oe Se Bene ee Sere 5 4:75 
BLeaOch Ob Nead) =n eee ae Pee eee 4 3+ 
Diameter of eye-opening (longitudinal), Me Seo 1°25 175 
eb (transverse) 2222 eseeee “15 1°25 
Length lof tentacular-anms: 2222) eee eee y ieee 24 aks 
Length of dorsal arms, (ist pair) 24-2 ese ae 6:5 T25 
pe eesubdorsals 69) 8 (2d pair ieee ae eee 8 8°75 
eee esubyentralie an(S dip ain) \= ae ee ee 8°5 9°25 
“ventral f) (Athapain) aes. aap e See 8 9:25 
Breadth of oo Painiol armssat bases == eee “15 “15 
2 BRST May Steet Cae RL Le ee 112 “80 
a 3d OD gal ait Siw SO Re ee ete 2 1:00 90 
ie 4th ATF OO) RSet 1:00 90 
3 tentacular-arms) = Ses oo. eee 2 eee 33-50 40-75 
as terminal club omsame esos eee “15 as 
length of siphon, in middle, _-2. 2220222. 2222 : 25 Ds 
Breadth: of Siphon wat: base mse a sae eee eens ae 2 
Breadth of aperture of siphon,___-_..---__----_=- 33 1 
Details of tentacular-arms: 
Length of ‘club,’ or expanded part,....-.--------- 6°5 a 
ss part bearing large suckers, -.--.-...-.--- 3°25 =e 
a ‘wrist.’ bearing smaller suckers, .._----- 1°25 c= 
a tip; with small) suckers. 0_ ) oases ee 1°50 ae 
iBreadthios “clubyainemiddle pss === see ee “15 = 
a middlovot arm), === eae BO se 
Details of suckers: 
Diameter of largest suckers of tentacular-arms, --- - “40 3 
rinis:of same... = ee 32 ae 
i largest suckers of dorsal arMmisgie eos — 28 
iy rims of Same; 4.2. 2. See eee a “20 
Hh largest suckers of 2d pair,_...---.---- ae “40 
s rims of ‘same, .- 422) ee ee eee fs "28 
. largest suckers of 3d pair,_....------- = “32 
Tims Of Same, -.... So oeae eee me "24 
ie largest suckers on ventral arms, __-_-- “40 30 
i rims), Of SaMne;,\ «92 35, 2p ee ees ae) 22 
Jaws : 
Upper mandible—total length,___..____..._..---- 1:16 1°68 
45 tip of beak to bottom of notch, “40 “40 
Hs ‘ tip to dorsal edge of frontal lamina, os 132 
“i “breadth between anterior lobes of ale, 32 32 
4 ce breadth of palatine, -.. ......2.2 Se 84 
Lower mandible—total length,............-_- -.-- =H 116 
Z nt depth, end of ale to mentum, ---- Bo 112 
eae “44 
+ He Deak sto motch:. = eee ne eee een 
S. megap- 
tera? 
Sable I. Bk. 
1:25 
“34 
98 
25 
“10 
“91 
‘87 
31 
Es 
