LOSS OF EYE-PIGMENT IN GAMMARUS. 309 
VI.A.1.n. Male, Red carrying Albino. 
Matings :—(1) with female q of its own brood, (R-+-A) ; 
63 young, 52 Red, 11 Albino (Plate IV, 
Hig. 9); 
(2) with female VI.B. (R-+A) ; 
50 Red, 19 Albino. 
69 young, 
VI A.l.o. Male, Pure Red. 
Matings : (1) with female h of its own brood (B+R-+ <A) ; 
(31 young, 17 Black, 14 Red) ; 
(2) with female p of its own brood, (R-+A); 
40 young, all Red. 
VI.A.t.p. Female, Red carrying Albino. 
Matings :—(1) with male m of its own brood ; (72 young 
all Red) (Plate IV, Fig. 11) ; 
(2) with male II.B. (R+A); (90 young, 66 
Red, 24 Albino) (Plate IV, Fig. 12) ; 
(5) with male o of its own brood ; (40 young, 
all Red) ; 
(4) with male VI.B.1.b. (R+ A) ; 
16 Red, 1 Albino. 
VI.A.1.q. Female, Red carrying Albino. 
17 young, 
Matings :—(1) with male n of the same brood ; (63 young, 
52 Red, 11 Albino) (Plate IV, Fig. 9) ; 
(2) with male m of the same brood; (32 
young, all Red) (Plate IV, Fig. 10) ; 
(3) with male ec of the same brood, (Pure 
Black) ; (45 young, all Black) (Plate IV, 
Fig. 8). 
Brood 2 of VI.A. 
The 4 Red hatched died immature. 
VI.A.3.t. Male, Red carrying Albine. 
Matings :—(1) with female VI.A.2.1. 
young, | Red, 5 Albino ; 
(2) with female VI.B.3.g. ; ate it ; 
(3) with female [V.V. (B+ A); 12 young, 10 
Black, 2 Albino ; 
(4) with female VI.C.3.d. (B+R); 25 young, 
12 Black, 13 Red. 
VI.A.3.u. Male, Red carrying Albino. 
(A+B+R); 6 
Matings :—(1) with female w of the same brood, (R-- A) ; 
48 young, 36 Red, 12 Albino ; 
