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Article XXXVIII. -NOTE on SOME WORM (?) BUR- ROWS in ROCKS of the CHEMUNG GROUP of NEW YORK

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Article XXXVIII. -NOTE on SOME WORM (?) BUR- ROWS in ROCKS of the CHEMUNG GROUP of NEW YORK Article XXXVIII. -NOTE ON SOME WORM (?) BUR- ROWS IN ROCKS OF THE CHEMUNG GROUP OF NEW YORK. By R. P. WHITFIELD. Arenicolites chemungensis, sp. nov. PLATE XIV, FIGS. I AND 2. While working up the fossils of the Potsdam sandstone for the Wisconsin Report, in I876 and I877, there came into my hands a number of specimens representing the so-called Scolithus, which I described as Arenicolites woodi in Volume IV of Prof. T. C. Chamberlain's Report of I882. One block of that series showed the original surface of the mud-covered sandstone with the burrows of the worm (?) which made the perforations, together with the little hillocks surrounding the outlet of the burrows, just as the animal built them up by its castings during life; proving pretty conclusively that it must have been a marine worm-like animal which caused the perforations. Among the geological specimens of the Chemung Group in the Museum, from near Bath, Steuben Co., New York, I find an example so nearly resembling that figured in the Wis- consin Report above referred to, that there can be no ques- tion as to the similarity of its origin. On this Chemung specimen the hillocks are somewhat larger and the funnels more distinct, being generally 5 or 6 mm. in diameter, and the walls surrounding them about 2 mm. thick, while some of the hillocks are much larger and higher and appear to have collapsed from the semifluidity of the sand, closing up the top of the burrow so as to show a mere slit in its place. In a vertical section of the rock the burrows are mostly flattened and often curved as if the sand below prevented, by its compactness, the penetration of the animal below a given depth. Or it may have been that the animal was allied to the recent Cluatopterus of our southern coasts, which builds a parchment-like tube, with two openings of a [473] 474 Bulletin American Museum of Natural History. [Vol. XX. calcareous structure at some inches apart, with the chitinous tube passing from one to the other some distance below the surface in the sand. This Chemung form I propose to dis- tinguish by the name Arenicolites chemungensis. If this latter view of these curved burrows should be cor- rect, may it not also be true of the curved cast of a burrow figured by Professor James Hall in Pal. N. Y., Vol. II, pl. 3I, fig. 7, and referred to as a " fragment of the rib of some verte- brate animal" in the description of the plate and on p. I05, as it occurs in the gray sandstones of the Clinton Group of Central New York? Geological position, in the Chemung Group, Steuben Co., New York. EXPLANATION OF PLATE XIV. FIG. i. - Shows the surface of the specimen of Arenicolites che- mungensis described on page 478. FIG. 2.- View of the edge of the block, showing the vertical burrows and the recurving of them in the rock below the surface. BULLETIN A. M. N. H. VOL. XX, PLATE: XIV. WORM BURROWS. INDEX TO VOLUME XX. [New names of higher groups, genera, species, and subspecies are printed in heavy- faced type; also the main references in a series of references.] ACANTHIS linaria, 402. the Andrew J. Stone Expe- Accipiter atricapillus striatu- dition of I903, 273-292; a lus, 402. new Sheep from Kam- Aceratherium acutum, 3I3,31 5. chatka, 293-29g; newmam- megalodum, 309. mals from Venezuela and profectum, 3 I 7. Colombia, 327-335; list of Acraspis gillettii, 25. mammals from Venezuela, macrocarpae, 25. collected by Mr. Samuel pezomachoides, 28. M. Klages, 337-345; a fos- Acronycta frigida, 82. sil Porcupine from Arizona hesperida, 82. 383, 384; the Tamandua pacifica, 82. Anteaters, 385-398; report Actitis macularia, 401. on mammais from the dis- AEgeria edwardsii, 83. trict of Santa Marta, Co- emphytiformis, 83. lombia, collected by Mr. rubristigma, 83. Herbert H. Smith, with Alurodon, 249, 250. field notes' by 'Mr. Smith, brachygnathus, 252. 407-468. compressus, 25I. Alouatta palliata, 79. haydeni, 245, 250. palliata mexicana, 40. hyeenoides, 252. seniculus caucensis, 462- saevus, 245, 250. 464. taxoides, '250. senicculus rubicunda, 458- ursinus, 252. 464. wheelerianus, 245, 250. Alticamelus, 215. Agouti paca, 444. Ampelis garrulus, 304. Akodon columbianus, 437, Amphibolips gainesi, 24. 440. ilicifoliae, 24. irazu, 46. inanis, 27. meridensis, 329. sculptus, 24. Alce, 276. spongifica, 27. gigas, 276. Atnphicyon, sp., 245. Alces, 276. Anace burra, 84. Aletis flammea, 84. Anchippus brevidens', 192. Allen, .T. A., new forms of the texanus, 192. Mountain Goat (Oream- Anchitherium agreste, i68. nos), 19-2 I; mammals from anceps, i 68. southern Mexico and Cen- australe, I 68. tral and South America, 29- brachylophus, i68. 8o; the external ear bone in celer, i 68. certain Rodents, I35-138; condoni, i68. further notes on mammals cuneatum, i68. from northwestern Du- equiceps, i68. rango, 205-210; new Bats exoletum, i68. from Tropical America, longicristis, i 68. with note on species of prestans, i 68. Otopterus, 227-237; mam- ultimum, i 68. mals collected in Alaska by westoni, i68. 475 476 INDEX. INDEX.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ancient Peruvian burials, rela- Artibeus planirostris, 233, 344, tive antiquity of, 2 I 7-226. 458. Andricus ashmeadii, 24. rusbyi, 230. batatoides, 24. watsoni, 79. capsula, 24. yucatanicus, 232. cornigerus, 27. Asio magellanicus lagophonus, crystallinus, 24. 402. exiguus, 24. Asynapta antennariae, 87. futilis, 27. Asyndetus syntormoides, 96. papillatus, 28. Ateles belzebuth, 344. patiens, 24. fuliginosus, 43. piger, 24. geoffroyi, 54. piperoides, 241. pan, 40, 43. pomiformis, 24. vellerosus, 42. speciosus, 24. Atta (Trachymyrmex) septen- tubicola, 28. trionalis, 299, 304. tumifica, 27. (Trachymyrmex) tardigra- utriculus, 24. da, 304. Anergates, 1. Auchenia, 2 I 5. atratulus, I, 358. Aulax podagre, 24. Anthrax alpha, 88. tumidus, 23. edwardsii, 88 serpentina, 88. BANDELIER, Ad. F., on the Anthus pensilvanicus, 405. relative antiquity of an- Antilocapra, I02. cient Peruvian burials, 2 I 7- americana, 104. 226. Antilocapridae, I02. Barycrinus hoveyi, 47I. Antilopinxe, I02. Beutenmiiller, William, types Antrozous pallidus, 2 10 of Cynipid2e in the collec- Aotoes felinus, 465, 467. tion of the American Mu- lemurinus, 465, 467. seum of Natural History, Aphelops brachyodus, 322. 23-28; types of Lepidop- ceratorhinus, 3 I 7. tera in the collection of the fossiger, 310, 325. American Museum of Nat- jemezanus, 310. ural History, 8i-86; types malacorhinus, 3IT, 325. of Diptera in the collection megalodus, 3I0, 325. of the American Museum of planiceps, 321. Natural History, 87-99. (Peraceras) planiceps, 324. Biorhiza hirta, 25. (Peraceras) superciliosus, Birtha talusina, 85. 324, 325. Blastomeryx, 10 I, I 23. Aphinochaeta aurea, 99. gemmifer, I03, I24. magnipalpis, 99. welisi, 103, 125, 245. Aphrosylus direptor, 98. Bombylius lancifer, 89. grassator, 98. Bobidea cerviformia, 102. prnedator, 98. typica, I 02. Archibuteo lagopus, 402. Bovidae, 102. Arctopithecus flaccidus, 339. Bovinle, I02. flaccidus var. dysoni, 339. Brachymyrmex heeri depilis, Arenaria melanocephala, 40I. 304. Arenicolites chemungensis,473. Brachyrhamphus brevirostris, woodi, 473. 399. Arquatella couesi, 401. kittlitzii, 400. Artaxa modesta, 84. Brachystoma occidentalis, 9I. Artibeus insularis, 239. Bradypus columbicus, 339. intermedius, 79, 233. tridactylus., 4 I 8. palmarum, 457. tridactylus flaccidus, 337. INDEX. 477 Brontosaurus, i8i, i86. Canachites canadensis osgoodi, sp., i88, I90. 40I. Brues, Charles Thomas, notes Canid, sp., 245, 246, 252, on Trichobius and the sys- 253. tematic position of the Canis aquilus, 342. StrebilidCe, I3I-I34. (Thous) aquilus, 450. Bubo virginianus saturatus, (Thous) cancrivorus, 341. 402. (Thous) cancrivorus savan- narum, 342. Caprinae, I02. CABASsous hispidus, 421, 422. Capromeryx, 104, 126. lugubris, 422. furcifer, I04, 127. (Ziphila) lugubris, 42I. Cardiocondyla stambuloffii, i. Caenopus persistens, 318. Carmenta nigra, 84. Calasesia coccinea, 84. Castor canadensis, 260. Callidryas fisheri, 8i. Catocala aholibah var. colo- Callirhytis agrifoiiae, 24. radensis, 82. californicus, 25. amica var. suffusa, 82. cicatricula, 25. aspasia var. sierrae, 82. clarkei, 25. faustina var. carlota, 82. clavula, 24. frenchii, 82. osten-sackenii, 24. relicta var. clara, 82. pulchra, 25. Cebus capucinus, 467. punctata, 25. fatuellus, 344. scitula, 25. hypoleucus, 54, 8o. SimiliS, 25. imitator, S5. singularns, 25. Cecidomyia antennariae, 87. suttonii, 25. caryaecola, 99. tuberosa, 25. holotricha, 99. Calobachyla silona, 85. ocellaris, 99. Caluromys cicur, 4I8. sanguinolenta, 99. laniger pallidus, 56. strobiloides, 99. trinitatis leucurus, 337. symmetrica, 99. Camelops, 215. tubicola, 99. Came]us, 215. Cepphus columba, 400. Camponotus, I39. Cercoleptes brachyotus, 72. castaneus americanus, 306. caudivolvulus, 72. herculeanus pennsylvani- megalotus, 72. cus, 306. Certhia familiaris montana, hyatti var. bakeri, 271. 406. maculatus vicinus var. niti- Cervidae, 102. diventris, 27I. Cervinae, I 0 2. marginatus, I4I, 155. Cervulinae, I02. pubescens, I41. Cervus nemorivaga var. peru- truncatus, I42. ana, 39. (Colobopsis) abditus, 149. palustris, 4I1. (Colobopsis) abditus var. tschudii, 39. etiolatus, I50, I53, 155- warreni, 103, 1 21. I 58. Chalcidoptera bilunalis, 86. (Colobopsis) impressus, I44. Chapman, Frank M., a new (Colobopsis) pylartes, I47, Grouse from California, I53-158. I59-I62; list of birds col- (Colobopsis) riehlii, I46. lected in Alaska by the Campsicnemus degener, 97. Andrew J. Stone Expedi- cedipus, 97. tion of 1903, 399-406. philoctetes, 97. Chilonycteris rubiginosa,
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