270 
ZOOLOGICAL LITERATURE. 
in Avion and the true HeliXy whereas it is smooth with a middle prominence 
in the typical Tehennojphoi'us, as in Limax. 
Limax pectinatus, sp. n., Selenka, Malak. Blatt. xii. p. 106, pi. 2, figs. 1-9, 
from Sydney. The same author describes a X. licolor as new (Z. c. figs. 10- 
17), hut recognizes its identity with Limacus hrechworthianus (1. c. p. 173). 
He also describes the anatomy of these species. 
Limax schwabi (v. Frauenf.). The zoological characters of this Transyl- 
vanian species, in comparison with those of X. transiloanicnsy are pointed out 
by Heynemann, Verb, zool.-bot. Ges. Wien, 1866, pp. 633-535. 
Limax arbcn'um has been observed lowering itself from a tree some five or 
six feet, and reascending it by the same thread. Harte, Proc. Nat. Hist. Soc. 
Dublin, iv. 1866, pp. 182 & 183. 
Ariolimax (Morch). Mr. Binney gives a description of this genus. An 
internal shelly plate j respiratory organs situated rather far backwards, as in 
Limax ) jaw dentate, as m Avion. Type Avion columhianus (Lea). The 
entire animal, jaw, and lingual dentition are figured. Am. Journ. Conch, i. 
p. 48, pi. 6. figs. 11-13. 
Urocyclus, g. n.. Gray. A deep pit in the posterior part of the mantle j 
caudal gland very large. XJ. kivkiiy Gray, Ann. & Mag. Nat. Hist. 1865, 
pp. 331 & 332, c. fig.. Central Africa. [The slug observed by Prof. Peters in 
Mozambique, which was alluded to by the Ilecorder in Mai. Blatt. 1859, 
appears to belong to' this genus.] 
Agnatha (Testacellea) . 
Lhy sella (Pfr.), Mr. Berendt states that the living animal is of much 
larger size than the shell. Another person stated that he had seen it leaving 
the shell whilst it was held in the hand of the observer. Mai. Blat. xii. 
pp. 207 & 208. 
Glandina uhdeana (Martens, 1863), figured Mai. Blatt. xii. pi. 1. fig. 1 ; 
G. turris (Pfr.) redesciibed, ibid. p. 11 ; G. amcena, sp. n.. Martens, ibid, 
p. 12, pi. 1. figs. 8 & 9 j all from Mexico. 
Cylindrella. Further observations on the peculiar structure of the colu- 
mella in several species have been published by T. Bland, this character 
having first been pointed out by him in 1855. In C. tuvris (Pfr.) the colu- 
mella is tubiform and ribbed, with a groove or sinus within each whorl ; in 
C, y old/ussi (Menke) there are four spiral lamellt© inside in the penultimate 
whorl. The absence of a buccal plate (jaw) in this genus is confirmed as a 
distinctive character from Macroceramns ; the teeth of C. secern (Gundlach) 
figured in a woodcut. Ann. Lyc. Nat. Hist. New York,.yiii. pp. 160 & 161. 
Cylindrella iruncata {Bulimus truncatuSy Pfr.) referred to this genus, and 
redescribed from a specimen collected by Uhde in Mexico. Martens, Mai. 
Blatt, xii. p. 13. New Species : — C.imbricatay Martens, ibid. pi. 1. figs. 2& 3, 
from Mexico j C. clava, Wright, cvistalUna, Wright, heynemanniy Pfr., mixta ^ 
Wright, teneriensisy Wright, Mai. Blatt. xii. pp. 119-121, from Cuba; 
C. coahuilensisy Binney, Am. Journ, Conch, i. p. 60, pi. 7. fig. 45, Cienga 
Grande, Coahuila ; C. vemondiiy Gabb, Am. Journ. Conch, i. p. 208, pi. 19. 
figs. 10-13, Sonora, Mexico, near C. pfeiferi ; C, modcsta, Poey, Bepert. 
fisico-nat. Cuba, i. p. 70, near C. camo'ensis. 
