Chap. G. 



INVERTEBRAL ANIMALS OF VERMONT. 



163 



FRESH WATER AND LAND SHELLS. 



cessively minute, transparent, and nearly 

 colorless ; wliorls two and a h:ilf, scarcely 

 convex, with the suture but little im- 

 pressed, sometimes with a slii^hlly im- 

 pressed line revolving- near the suture ; 

 aperture elliptic, not much modified by 

 the intrusion of the penultimate whorl; 

 labruni thin nnd sharp; inner lip slightly 

 reflected. Greatest breadth 0.24 inch ; 

 least breadth 0.18 inch ; height 0.12 inch; 

 divergence about ItiO". 



Remarks. — This species, well known 

 over a large part of Europe, was observed 

 first on this continent by Mr. Say, who 

 remarks that it " was first found near 

 Coldwater Lake, in lat. 48| N., under 

 stones, fallen timber, &,c. It afterwards 

 occurred, in similar situations, until wo 

 approached Lake Superior, when it was 

 no more seen." This side of Lake Supe- 

 rior it has been found only at Rogers' 

 rock, near the N. E. extremity of Lake 

 George, within the space of a square rod. 

 As it occurred so near to Vermont, and 

 will very probably be found within its lim- 

 its, we have included it among our spe- 

 cies. It does not appear to differ from 

 the European shell, except in the want of 

 u greenish tinge. 



Genus Limax. 



Generic Characters. — Animal wiihoiit a shell, 

 oblong, convex above, fiiinisbed with a leatlieiy 

 t-hield over the anterior dorsal region ; benealli 

 Willi a flattened longitudinal foot ; with four ten- 

 tacles, of which the posterior pair are larger and 

 oculiferous ; with the branchial cavity bi-neath the 

 shield, openino on the rij;iit side. 



The species of this and of kiiidred geticra are 

 commonlv sIiil'S, or suaik, tVom their resemblance 

 (o the inhabitants of snail shells. In liirninij over 

 stones and logs or boards, ihey are often seen. 



Limax campcstris. — Bin.ney. 



Description. — " Color usually of vari- 

 ous shades of amber, without spots or 

 markings, sometimes blackish ; head and 

 tentacles smoky. Body cylindrical, elon- 

 s;ated, terminating in a very short carina 

 fit its posterior extremity, mantle oval, 

 fleshy, but little prominent, with five con- 

 centric lines ; back covered with promi- 

 nent, elongated tubercles and furrows; 

 foot narrow, whitish ; respiratory foramen 

 on the j)Osterior dextral margin of the 

 mantle; foody covered with a thin watery 

 .mucus. Length about one incli." 



Remarks. — This species is smallerthan 

 L. (7o-?-C5fts5, Linn. "The tuberosities of 

 the surface are more prominent in propor- 

 tion to their size, are not flattened or plate 

 like, and are not separated by darker col- 

 ored anastomosing lines, the intervening 

 lines being of the same color as the gen- 



eral surface." It is found under wood 

 and stones in various situations. 



Genus Teeennophorus. — Binney 

 Gcnrric Characters. — •' Mantle covering the 

 whole superior surface of the body ; pulmonary 

 cavity anterior, orifice on the right side towards 

 the head ; orifice of the rectum contiguous to and 

 a lillle above and in advance of the pulmonary 

 orifice ; organs of generation united, orifice bo- 

 hind and below the superior tentacle of the right 

 side ; without testaceous rudiment, terminal mu- 

 cous pore, or locomotive band of the foot." 

 Tehcnnophorus Caroliniensls. — Bosc. 

 Description. — Body whitish, with 

 brownish or blackisJi spots arranged in 

 three ill defined, longitudinal, anastomo- 

 sing bands, with small spots between ; 

 inferior margin cream colored ; foot whi- 

 tish ; superior tentacles knobbed at the 

 extremity, with the eyes on the upper 

 part of the knob; "cuticle covered with 

 irregular, vermiform glands, anastomosing 

 with each other, and having a general 

 tendency to a longitudinal direction, with 

 shallow furrows between, lubricated with 

 a watery mucus." Length, when fully 

 extended, upwards of three inches. 



Remarks. — This species inhabits for- 

 ests, in damp, shaded places, about de- 

 caying wood. In the cabinet of Mid- 

 dlebury college are two specimens, which 

 were taken from the nest of the brovva 

 hawk, (Falco fuscus, Gm.) 



Genus Philomycus. — Rafinesqrte. 



Generic Chamctcrs. — Animal resembling the 

 preceding, but entirely destitute of a mantle. 

 Philomycus dorsalis. — Binney. 



Description. — " Color of upper sur- 

 face ashy, with a shade of blue, an unin- 

 terrupted black line extending down the 

 centre of the back; superior tentacles 

 black, about one eighth of the length of 

 the body ; lower tentacles blackish, very 

 short ; body cylindrical and narrow, ter- 

 minating posteriorly in an acute point ; 

 base of foot white, very narrovi'^, its sepa- 

 ration from the body not well defined ; 

 upper surface covered with elongated and 

 sligiitly prominent glandular projections, 

 the furrows between indistinct; respira- 

 tory orifice very minute, situated on the 

 right side, about one eighth of an inch be- 

 hind the insertion of the superior tenta- 

 cle." Length nearly an inch. 



Remarks.— This species is found in tlie 

 forests, in the soil about decaying wood. 

 It is probably not very common. 



