350 



SCIENCE. 



[N. S. Vol. XVI. No. 400. 



for purposes of classification. The spealier 

 also discussed the structiire of the pelvis of 

 the Sauropoda with relation to the theory 

 as to the origin of the group from .bipedal 

 dinosaurs. (Discussed by Dr. C. S. Minot.) 



A Record of the Occurrence of Filaria loa, 

 a Human Parasite new to the United 

 States: Heney Baldwin Ward, Univer- 

 sity of Nebraska. 



The speaker cited a case of the occur- 

 rence of this thread worm, giving an ac- 

 count of the clinical history, the wander- 

 ings of the parasite, etc. (Discussed by 

 Messrs. McMillan, Marlatt and Stiles.) 



Notes on Some Cretaceous Fish from Kan- 

 sas: Oliver Perry Hay, American Mu- 

 seum Natural History. (Will appear in 

 full in Bulletin Amer. Mus. Nat. Hist.) 

 The speaker discussed especially the gen- 

 era Protorphyrcena and Anogmius, men- 

 tioning new features in their structure and 

 presenting conclusions concerning the rela- 

 tionships of the organisms in question. 



Morphology of Insect-galls: Melville T. 



Cook, Greencastle, Ind. 



The speaker stated that the morpholog- 

 ical character of a gall depends upon the 

 insect producing it, and not upon the host 

 plant. Galls produced by insects of the 

 same family show a resemblance, and those 

 produced by insects of the same genus show 

 a decided resemblance. In some cases galls 

 similar in character are produced by in- 

 sects of widely separated genera. This is 

 probably due to the fact that the insects 

 aifeet corresponding tissues of the host 

 plant. The insects always affect the ac- 

 tive growing parts of the plant. It was 

 stated further that many of the so-called 

 'stem-galls' are in reality bud-galls. In 

 these cases also it seems probable that the 

 insects affect corresponding tissues of the 

 host plant. The Cecidomyid galls show the 

 greatest variation, both in external charac- 



ters and in histology. The Cynipidid galls 

 show the highest development, both in ex- 

 ternal characters and in histology. (Dis- 

 cussed by Jlr. Marlatt.) 



In the absence of the authors the follow- 

 ing papers were read by title : 



Plankton Pulses: Charles Atwood Kofoid, 

 University of California. (No abstract 

 presented.) 



Fish Remains of Oriskany Sandstone, Chap- 

 man Plantation, Aroostook County, 

 Maine: Olop 0. Nylander, Caribou, 

 Maine. 



A New Fresh-water Isopod of the Genus 

 Mancasellus, from Indiana: Harriet 

 Richardson, Smithsonian Institution. 

 (Will appear in full in Proc. V. S. Nat. 

 Museum, v. 25, pp. 505-507.) 

 The genus Mancasellus was established 

 by Harger from the form irachyurus. There 

 are, up to the present time, but four known 

 species ; M. hrachyurus Harger, M. macrou- 

 rus Garman, M. lineatus (Say) and M. 

 tenax Harger, and one subspecies M. tenax 

 dilata Harger. The genus is not repre- 

 sented outside of North America. This 

 paper contains a description of Mancasel- 

 lus danielsi, which comes from Lily Lake, 

 Indiana, and was collected by Mr. L. B. 

 Daniels. 



A Neiv Terrestrial Isopod of the Genus 

 Pseudarmadillo, from Cuba: Harriet 

 Richardson, Smithsonian Institution. 

 (Will appear in full in Proc. U. S. Nat. 

 Museum, v. 25, pp. 509-511.) 

 The type and only species of the genus 

 Pseudarmadillo, P. carinidatus, was de- 

 scribed by Saussure. The new species, P. 

 gittianus, described in this paper was col- 

 lected by Messrs. Palmer and Riley at 

 Neuva Verona, Isla de Pinos, Cuba. The 

 description is from a single specimen. 



