216 
ZOOLOGICAL LITERATURE. 
Thomson, he adopts Schaum^s limitation, and considers the fol- 
lowing genera only to belong to the group : — Trechus (to which 
he adds as subgenera Anophthalmus, Epaphius, ThalassopMlus, 
and Cnides) , JEmalodera (Sol.),^cjt?w5 (sic, instead o^JEpijs, from 
alirvs;), with which he states that Thalassobius , Sol., is identical, 
and Perileptus. Tachynotus (Mots.) is added with doubt. In his 
general remarks, the author alludes to the following diagnostic 
characters : — the relative length of the second and fourth joints 
of the antennae ; the comparison of the length of the elevated 
space opposite the anterior angles of the thorax, and comprised 
between the eye and the curved furrow that starts from the 
base of the epistoma on each side ; the point reached by the 
orbital line, if it were prolonged in front, &c., — in addition 
to the characters pointed out by Pandelle. He refers to the 
extreme variation in the dimension, form, and projection of 
the eyes in the Trechides, and notes that those organs are 
especially small in such species as are testaceous in colour. 
PuTZEYS (/. c. pp. 35-37) particularly draws attention to the species of 
Trechus described by Ileer (1837), viz. T. ylacialis^ assimilis, profundestrui- 
tus, macrocephalus, pertyi, and Icevipennis^ the types of which, deposited by 
Ileer in the Museum of Zurich, have been communicated to Tournier, who 
has figured them with great exactness. These figures, examined and vouched 
for by Ileer himself, form plate 1 to the Monograph of Putzeys, who consi- 
ders that the several species to which they refer must stand, and that Schaum 
was wrong in his appreciation of those species. 
Trechus fiilvus (Fairm. et Lab., nec Pej.) is renamed cephalotes by Putzeys, 
1. c. p. 19, who adopts the name gravidus, proposed by Schaum, for 'T. lati- 
pennis (Ohaud. nec Sturm), and montanellus and splendens respectively pro- 
posed in Gemm. and v. Harold’s Cat. for montanus (Putz., 1847, nec Motsch., 
1844) and micans (Schaum, nec Le Conte, 1840). 
Peitter (Berl. ent. Zeit. xiii. pp. 303 & 304) redescribes Trechis mi’- 
crophthalmus and T. subterraneus (Mill.). 
Trechus minutus (Fab., 1792) = quadristriatus (Schrank, 1781) : Crotch, 
Coleopt. Hefte, v. p. 112. 
Abeelle de Perrin (Ann. Soc. Ent. Fr. 4^ s^r. ix. p. 408) suggests rea- 
sons for his opinion that the species of Anophtalmus {sic, except on title) do 
not live in caves, but in the fissures of rocks. Pie accounts for modifica- 
tions of structure in the same species (such as the possession or want of eyes) 
by imagining the separation through some geological phenomenon of strag- 
glers from an original colony, which perpetuate their individual peculiarities, 
on account of the impossibility of crossing with the primordial type. Acting- 
on this idea, he refrains from giving specific rank to an insect found by him- 
self in the cave of Ste. Madeleine at Ste. Baume du Var, and names it A. 
auberti, var. magdalence (mngdalense at p. 409, — suggestive of an Abyssinian 
locality). lie also mentions another variety, or monstrosity, of A, auberti, 
taken by himself. / 
Javet (Ann. Soc. Ent. Fr. 4® sdr. ix. Bull. p. xxix) reports the capture by 
Dieck of a great number of Aphcenops and Anophihalmus in the caves of 
