Index to Volume XVI 



Squalus acanthias, epibranchial, pla- Translated normal curve, 60. 



codes, 336. Typhlocyba, 198. 



Starch in apple trees, 356. Vascular plants, Ohio, 104. 



Sunfish nests, Biemiller's cove, 125. Zones, plant, and evaporation, 91. 



Tennessee tingid, 326. Zoocecidia on Hicoria, 37. 



Thamnotettix, 192. Zoocecidia, morphology, 249. 



Thallium, electrical conductivity, 244. Zygnemales, 17. 

 Tingid, new, 326. Zygnema, 21. 



Toledo Cedar Point, 216. 



NEW SPECIES DESCRIBED IN VOL. XVI 



Animal 



Agallia cuneata Cog 181 



Agallia nigrasterna Cog 180 



Athysanus aethiopica Cog 189 



Athysanus cyclopia Cog 191 



Athysanus eriocephalus Cog 190 



Athysanus nemesia Cog. 191 



Cicadula longiforma Cog 196 



Deltocephalus aristida Cog 187 



Deltocephalus breviatus Cog 186 



Empoasca heliophila Cog • 197 



Empoasca protea Cog 197 



Idiocerus hewitti Cog 180 



Leptostyla costofasciata Drake 326 



Pediopsis capensis Cog 179 



Philaenus hottentoti Cog .-.:....;.. 175 



Thamnotettix cotula Cog 193 



Thamnotettix karrooensis Cog 192 



Thamnotettix karrooensis pallidus Cog 192 



Thamnotettix pentzia Cog 194 



Thamnotettix struthiola Cog 194 



Typhlocyba elegia Cog 199 



Typhlocyba mallyi Cog 198 



Typhlocyba purpureatincta Cog 198 



Plants 



Debarya americana Trans 18 



Debarya decussata Trans 19 



Debarya glyptosperma formosa Trans 18 



Spirogyra borgeana Trans 23 



Spirogyra crassa formosa Trans 27 



Spirogyra farlowii Trans .' 29 



Spirogyra floridana Trans 30 



Spirogyra hydrodictya Trans 28 



Spirogyra micropunctata Trans 27 



Spirogyra nova-angliae Trans 26 



Spirogyra propria Trans 25 



Spirogyra reflexa Trans 28 



Zygnema cruciatum caeruleum Trans 21 



Zygnema cylindricum Trans 22 



Zygnema pectinatum crassum Trans 21 



Date of Publication June 10, 1916. 



