THE MAMMOTH CAVE. 9] 
several specimens, and satisfied myself that the 
peduncle of the eye only exists; but there are 
no visible facets at its extremity, as in other 
crawfish.* 
“Mr..Thompson mentions, further, crickets, 
allied to ‘ Phalangopsis longipes,’ of which Tell- 
kampf says that it occurs throughout the Cave. 
Of spiders, Dr. Tellkampf found two eyeless, 
small, white species, which he calls ‘ Phalangodes 
armata’ and ‘Anthrobia monmouthia’—flies, of 
the genus ‘Anthomyia’—a minute shrimp, called 
by him ‘Triura cavernicola, and two blind beetles 
—‘Anophthalmus Tellkampfir of Erichson, and 
‘Adelops hirtus; of most of which Dr. Tell- 
kampf has published a full description and 
figures in a subsequent paper, inserted in Krich- 
son’s Archiv, 1844, p. 318. 
“The infusoria observed in the Cave resemble 
‘Monas Kolpoda,’ ‘Monas socialis, and ‘ Bodo 
* Speaking of the eyes of animals, it is remarked in the val- 
uable school-book of Professors Agassiz and Gould, entitled 
“Principles of Zodlogy,” Boston, 1859, “ Others, which live in 
darkness, have not even rudimentary eyes, as, for example, that 
curious fish (Amblyopszs speleeus) which lives in the Mammoth 
Cave, and which appears to want even the orbital cavity. “The 
crawfishes (Astacus pellucedus) of this same Cave are also blind, 
having merely the pedicle for the eyes, without even traces of 
facettes.”—p. 55. 
