[91] CEPHALOPODS OF NORTHEASTERN COAST OF AMERICA. 301 



alcohol of moderate strength, repeatedly changed; at the present time 

 the strength of the alcohol is about 80 per cent. They are in good con- 

 dition, moderately firm and not badly contracted. Those designated as 

 D, E, F, X, O, P were also collected at one time, in August, and pre- 

 served together. They are in fair condition, but not so well preserved 

 as the former lot. Those numbered ii to xiv were preserved together 

 about the last of July. They were placed in strong alcohol, and are 

 hard and badly contracted. J, K, and L were preserved together, but 

 were originally found dead on the beach and in a relaxed state. They 

 are only moderately contracted by the alcohol. 



Measurements of Ommastreplies illecebrosus (in indies). 



Tail to tip of dorsal anus 



Tail to tip nf second pair anus 



Tail to tip of third pair area 



Tail to tip of fourth pair arms 



Tail to tip of tentacular arms 



Tail to base of dorsal arms 



Tail to center of eye 



Tail to edge of mantle, above 



Tail to edge of mantle, below 



Tail to insertion of fin 



Breadth of iin 



Between lateral insertions 



Front edge, onter angle to insertion 



Outer angle to tip of tail 



Circumference of body 



Breadth of body - 



Breadth of head at eyes 



Breadth of eye-opening 



Breadth of siphon at bridle 



Length of head, mantle to base of dorsal 



arms 



Length of dorsal arms 



Length of 2d pair 



Length of 3d pair 



Length of 4th pair 



Length of tentacular arms 



Length of club 



Breadth of dorsal arms 



Breadth of I'd pair 



Breadth of .3d pair 



Breadth of 4th pair 



Breadth of tentacular arms 



Breadth of club 



Front to back of 3d pair 



P? 



DIAMETER OF SUCKERS. 



Largest on tentacular arms 



Largest on 3d pah- 



Largest on ventral arms 



PROPORTIONS. 



Fin-length to mantle-length, 1: . . . 

 Fin-breadth to mantle-length, 1 : . . 



Length* to breadth of fin, 1: 



Length of head to mantle, 1: 



Length of dorsal arm to mantle. 1 : 



13. 40 

 14.20 



14. 20 

 i:;. in 

 10.50 

 10.00 



0.30 

 8.60 

 8.20 

 3. 30 

 4.20 



P? D? E? Jcf Id 



2.20 

 3.30 



4. 80 

 1.70 

 1.00 

 .40 



. i.'i 



1.40 



3. 7.'. 



4.30 



4.10 



3. GO 



6.80 



3. 30 



.3.". 



.4.'> 



.45 



.44 



.25 



.30 



.65 



.18 

 .18 

 .11 



2.00 

 2. 04 

 1.27 

 6.14 

 2.29 



Tentacular suckers to mantle, 1 : 47. 77 



13. 00 

 13. 70 

 13.70 

 13. 60 

 17. 50 

 9.40 

 8.90 

 8.00 

 7. 50 

 3.20 

 4.30 



13.25 11.00 



2.20 



3. 25 

 4.80 

 1.60 



1.50 



.4.-. 

 .70 



1.40 

 3.60 

 4.20 



4. 25 

 3.80 

 8.00 

 3. 50 



.36 

 .44 

 . It 

 .42 

 .28 

 .30 

 .CO 



2.50 

 1.8G 

 1.34 

 5.70 

 2. 22 

 47,05 



15.5 

 9.00 



8. 25 

 7. 75 

 7. 30 



3. 10 



4. 25 

 .50 



2.00 

 3. 15 



12.00 

 7.90 



7. :::, 

 7.10 



13.50 10.50 



14.30 10.80 



14.20 11.00 



13.40 10.60 



15.50 12.20 



in. no 8.30 



2. 75 



::. 78 



.40 

 1.90 

 2. 90 



1.35 



.35 

 .65 



1.25 



3. 25 



4.00 



4.00 



3.50 



0. ,-,o 



2. 75 



.28 



.35 



. :;:, 



.32 

 .30 

 . 22 



.:,o 



.15 

 . 14 

 .10 



2.50 

 1.82 

 1.37 

 6.20 

 2.38 

 31.66 



1.15 



.80 



2.70 



3.15 



:;. no 

 2.80 

 4.00 

 1.85 

 .25 

 .30 



. 28 

 .30 

 .30 

 .18 

 .40 



.11 

 .11 

 .09 



2.58 

 1.87 

 1.37 

 8.87 

 2. 62 

 04.54 



9. 50 

 8.70 

 8.10 



3. 50 

 5.15 

 .05 



2. Ml 



3. 5H 

 6.50 



2. 15 

 1.05 



.36 

 .78 



1.30 

 2.65 

 4.40 



4. 55 



3. 80 

 5.80 

 2. 55 



.35 

 .45 

 .50 

 . 45 

 .28 

 . 25 

 .05 



.17 

 .20 

 .11 



2.48 

 1.69 

 1.40 

 6.70 

 3.28 

 51. 20 



7.75 

 7.50 

 7.15 

 2.90 

 3.80 

 .45 

 2.80 

 :;. mi 

 4.30 

 1.30 

 1.20 

 . 20 

 .60 



.80 



2.20 



2. 70 



2. 07 



2.43 



4.00 



1 . 75 



.30 



.35 



.35 



.35 



.20 



.22 



.45 



.11 

 .14 



. 119 



2. 58 

 1.97 

 1.30 

 9.30 

 3.40 

 Os. is 



BcT 



10. 50 



11. 10 

 11.20 

 11.00 

 12.50 

 8.20 

 7.70 

 7.20 

 0. 65 

 2. so 

 3.90 



2.10 

 2.90 

 4! 00 

 1.40 

 1.30 

 .23 



1.00 

 2. 43 

 3.12 

 3.15 

 2. 75 

 4.10 

 1.90 



2.57 

 1.84 

 1.39 

 7.20 

 2.90 

 55. 3K 



WcT 



S.25 



0. 50 



5.70 

 5.38 

 2.10 

 2.65 



1.45 



2.00 



1.10 



1.00 



.80 



1. 75 



2. 25 

 2.25 

 2. On 

 4. 50 

 1. 30 



.20 



.25 

 . 25 



.17 



2.71 

 2.15 

 1.26 

 7.12 

 3. 25 



Fresh. 



12.04 

 12. 84 

 12.84 

 12. 44 

 16.12 

 8.84 



3. 44? 

 3.00 



3.20 

 4.00 



4.00 

 3.00 



7.28 



* The length of the fin, in these tables, means the distance from the lateral insertions to the tip of 

 the tail, which is somewhat less than the extreme length. 



Some specimens, included both in this and the following tables, show 

 small differences in their measurements (made at different times), due 

 partly to the different degrees of extension employed in measuring 

 them, and partly to the fact that the alcohol had been changed and its 

 strength altered. 



