120 



NATURAL HISTORY OF ARCTIC AMERICA. 



Coitus octodccimspinosus Mitcliill is known from Halifax on tlie north 

 to Beesley's Point, New Jersey, on the south, where it was collected by 

 Prof. S. r. Baird in 1854. It is considered a shallow -water species ; but 

 the United States Fish Commission htis a specimen from 68 fathoms in 

 the Gulf of Maine, where the temperature was about 42° Fahr. The 

 greater portion of the examples were from 10 fathoms or less. 



Add to these Coitus scorpioides of Fabricius, and it will complete the 

 list of Eastern North American species of the genus Coitus so far as 

 known. 



As already intimated. Coitus scorpius sub-species grbnlandicus is quite 

 readily separated from the typical C. scorpius by its wider interorbital 

 distance and its higher spinous dorsal, which differences are best exem- 

 plified in the specimens from Greenland, and apijear, along with others, 

 in the measurement tables. 



Table of Measurements. 

 Species, Cottus scorpius sub-species gronlandicus. 



Current number of specimen. 



Locality 



Extreme length 



Length to origin of middle caudal rays. 

 Body: 



Greatest height 



Greatest width at pectoral base 



Height at ventrals 



Least height of tail 



Length of caudal peduncle 



Head : 



Greatest length 



Distance from snout to nape 



"Width of iuterorbital area 



Length of snout 



Length of upper jaw 



Length of mandible 



Distance from snout to orbit 



Diameter of orbit 



Dorsal (spinous) : 



Distance from snout 



Length of base .* 



Length of first spine 



Length of sfpond spine 



Length (if tliird spine 



Length of fourth spine 



Length of fiftli spine 



Length of sixtli spine 



Length of seventh spine 



Length of eighth spine 



Length of niutli spine 



Length of tenth spine 



Length of eleventh spine 



Length of longest ray 



Length of last ray 



Anal: 



Distance from snout 



Length of base 



Length of first ray 



Lengtli of longest ray 



Length of last ray 



21,730. 



Godthaab, Greenland, Aug. 8, 1878. 



Millime- 

 tres. 



lOOths of 

 length. 



24 

 22 

 24 



H' 



39 



28 



7i 



9 

 19 

 20i 

 10 



9 



35 

 27 

 16^ 



18 



18 



19 



16^ 



14 



11 



17 

 6J 



62 

 25 



7 

 14 



6i 



Millime- 

 tres. 



226 

 186 



lOOths of 

 length. 



23 



23 



5J 

 12 



38 

 27 



6 



9 

 19 

 20J 

 10 



33 

 26 

 15 



ICJ 

 IGJ 

 lUA 

 15i 

 14i 



12 



3 



19 



