1912.] NATURAL SCIENCES OF PHILADELPHIA. 289 
Attide devoured flies, gnats, larvee and other spiders, but would 
not touch ants. Synageles picata and Synemosyna formica are 
always hungry for gnats, but will not eat ants (p. 107). Ants 
devoured an ant-like spider, Herpyllus, which was placed in a 
vial with them (p. 109). 
*PreckHaM, G. W. and E.G. The Sense of Sight in Spiders with 
some observations on the Color Sense. Trans. Wis. Acad. Sct., 
X, 1894-5, pp. 231-261. 
Remarks on food taken in captivity, but nothing in relation to 
protective adaptations of prey. 
Puareau, Fetix. Observations et experiences sur les moyens de 
protection de |’Abraxas grossulariata L. Mem. de la. Soc. Zool. 
de France, VII, 1894, pp. 375-392, 3 figs. 
Experiences avec Araignees, pp. 385-388. 
Spiders, Amaurobius ferox, and Agalena labyrinthica would not 
touch the larva of Abraxas. Tegenaria domestica attacked the 
larva, but could not pierce its tough skin. Both Tegenaria and 
Epeira diadema ate imagos, while Agalena rejected them. 
Experiences avec Carabes et Dytiques, pp. 388-390. 
Carabus auratus, Dytiscus marginatus, and D. dimidiatus freely 
devoured Abraxas larvee. 
*Pocock, R. I. Notes upon the habits of some living Scorpions. 
Nature, 48, 1893, pp. 104-107. 
They ate cockroaches, blue-bottle flies, etc., in captivity. 
Pocock, R. I. Further notes and observations on the instincts of 
some common English Spiders. Nature, 49, 1893, pp. 61-63. 
It was found that the prey of Agalena labyrinthica consists largely 
of bees. A Bombus put in a web was enshrouded before it was 
killed; a blue-bottle fly was pounced upon at once, while a 
drone-fly (Eristalis) was cautiously attacked and killed, but not 
enshrouded. 
*PorTER, J.B. The habits, instincts, and mental powers of Spiders, 
genera, Argiope and Epeira. Amer. Journ. of Psychology, 17, 
1906, pp. 306-357. 
Experiments with food, but not in relation to protective adapta- 
tions, are described on pp. 334-338. 
EXPERIMENTS WITH VERTEBRATES. 
FISHES. 
In a paper entitled, ‘An Experimental Field-study of Warning 
Coloration in Coral-reef Fishes,’’® Prof. Jacob Reighard records a 
variety of experiments to determine the significance of colors and 
flavors of prey to gray snappers (Lutianus griseus). The predaceous 
fishes were free and under normal conditions. The common prey 
8 Papers from the Tortugas Laboratory, Carnegie Institution, Vol. II, 1908, 
No. 9, pp. 257-325. 
