262 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
( Cereus, waxen. ) 
U.S. National Museum No. 50011. Collected by B. A. Beanjat Waquoit Bay, Mass. 
Specimens from Falmouth present the following range of measurements: Total 
length 1.5 to 2.5 inches; head 4 to 4.83; depth 4.5 to 6; eye 2.75 to 3.25; snout 3 to 
4; D. 1v to vi, 9 to 11, mostly v-i, 9 or 10; A. i, 15 to 18; scales 37 to 40. 
From Woods Hole: Total length 1.87 to 2.25 inches; head 4 to 4.25; depth 4.6 to 
6; eye 3— to 3+; snout 3 to 3.4; D. rv to vi-i, 9 to 10, mostly vi, 9; A. i, 15 to 20; 
scales 38 to 41. 
From Wareham River: Total length 1.37 to 1.62; head 3.6 to 4; depth 4.75 to 5.75; 
eye 2.6 to 3; snout 3+ to 3.5; D. 1v to vi, 9 to 10; A. 1, 15 to 17; scales 37 to 40. 
From Watermill, Long Island: Total length 2 to 2.93 inches; head 4.1 to 4.5; 
depth 5.44 to 6; eye 2.75 to 3.33; snout 3.14 to 3.33; D. v-i, 9 and 10; A. 1, 17 and 18; 
scales 39 to 41. 
From Albemarle Sound: Total length 1.87 inches; head 4.2 to 4.5; depth 6 to 6.33; 
eye 2.5 to 2.66; D. 1v to vi-i, 9 to 11; A. 1, 17 to 18; scales 40 to 42. 
From Sampit River, South Carolina: Total length 2.12 to 2.87; head 4.16 to 4.75; 
depth 5.75 to 6.33; eye 2.5 to 3+; snout 3 to 3+; D. 1v to vi-i, 9 to 11; A.1, 17 to 19; 
scales 37 to 40. 
Comparative table of average measurements of Menidia beryllina and Menidia beryllina cerea. 
| 
| 
| 
3 : 
d 0 
mle ; 8 : : : 
te By Name and locality. = = r-| 3 = Be g 
3° $/s|eigie] 8 - | 3 
Zz eae | /ala! & a < Be 
M. beryllina. 
Inch. 
10 Potomac River, Washington -| 2.84 | 4.50 | 5.07 | 2.86 | 3.44 y-i, 10 1,7 38 
10 Potomac River, St. Georges | 
Ts] dri eee eee eee en eee 2.53 | 4.20 | 5.90 | 3 (2) | v-i,10 i,17'| (2) 
General average of 20 | | 
SPECIMENS 3.522 c2s cee: 2.83 | 4.30 | 5.63 | 2.93 | 3.44] v-i, 10 i,17 | 39 
| | 
M. beryllina cerea. 
20>) Kalmouth, Mass 22222 ,c2. ce a0 2.09.) 4.16 | 5.84 | 3 8.27 | v-i, 10 1,16 | 37 
10 | Woods Hole, Mass...........- 2.07 | 4.14 | 5.17 | 3 3.09 | v-i, 9 i,16 | 39 
10 | Wareham River, Mass........ 1.60 | 3.43 | 5.12 | 2.87 | 3.28 | v-i, 9 1,16 | 37 
| Watermill, Long Island ...-.-. 2.08 | 4.26 | 5.72 | 3 3.26 | V-i,10 1,17 | 40 
5 | Albemarle Sound, Edenton, | 
IN Get ora eee Seta me ncieiase 1.85} 4.28 156.20) (2.60: |oc2-c< | v-i,10 abel 40 
1 | Lake Mattamuskeet, N. C....| 2.87 | 4.33 | 6 Bi 20 lave eerse | v-i,11 1,18 | 39 
8 | Sampit River, Georgetown, : 
NU telaalors siejeisiematcicieie eine eieiee ee 2.39 | 4.44 | 6 2581713 y-i, 10 1,174) 37 
General average of 44 : ; 
SPECIMENS. Sc ceccccinn 2.05 | 4.20 | 5.64 | 2.96 | 3.24 | v-i, 9.5 1,16 | 39 
Menidia menidia and Menidia notata. 
Examination of the types of Menidia dentex Goode & Bean from St. Johns River, 
Florida, and of specimens from Charleston, 8. C., the type locality of Atherina menidia 
Linnzeus, led to examination and comparison of specimens of Menidia menidia and 
Menidia notata from other localities ranging northward as far as Halifax, Nova Scotia, 
resulting in the discovery of the intergradation of the species of M. notata and M. 
menidia. Since M. menidia Linnzeus (1766) has priority, the form called M. notata 
(Mitchill) must stand as Menidia menidia notata (Mitchill). 
Beginning with the St. Johns River, C. denter agrees most nearly with the descrip- 
tion of M. menidia; northward the intergradation becomes more and more evident, 
reaching its height in the Chesapeake region, whence northward the characters 
