TABLE OF CONTENTS. VII 



Page. 



Torre, de la, Carlos, and John B. Henderson. New 

 mollusks from Camaguey and Santa Clara Provinces, 

 Cuba. No. 2369. July 12, 1921 x ...247-267 



New species: Opisthosiphon (Opisthosiphona) paredonense , 0. (0.) 

 obturatum, 0. (0.) apertum, 0. (0.) bioscai, 0. (0.) salustii, 0. (0.) 

 evanidum, 0. (0.) occultum, 0. (Opisthosiphon) protractum, 0. 

 (0.)judasense, 0. (0.) detectum, 0. (0.) obtectum, 0. (0.) lamelli- 

 costatum, Eutudora (Eutudorops) paradoxum. 

 New subspecies: Opisthosiphon (Opisthosiphona) berryi semiapertum, 

 0. (0.) paredonense paredonense, 0. (0.) paredonense transitorium, 

 0. (0.) obturatum obturatum, 0. (0.) obturatum subobturatum, 0. 

 (0.) o. banaoense, 0. (0.) bioscai bioscai, 0. (0.) b. tersum, 0. (0.) 

 evanidum evanidum, 0. (0.) e. degeneratum, 0. (Opisthosiphon) 

 obtectum obtectum, 0. (0.) o. tenuicostum. 

 Udden, J. A. The Troup, Texas, meteorite. No. 2383. 



September 15, 1921 x 471-476 



Viereck, Henry L. First supplement to " Type species of 

 the genera of Ichneumon-flies." No. 2364. June 11, 



1921 » 129-150 



Wade, Bruce. The fossil annelid genus Hamulus Morton, 



an operculate Serpula. No. 2359. June 10, 1921 J 41-46 



New species: Hamulus angulatus. 

 Weld, Lewis H. American gallflies of the family Cyni- 

 pidae producing subterranean galls on oak. No. 2368. 



June 27, 1921 ' 187-246 



New species: Disholcaspis acetabula, D. lacuna, D. globosa, D. 

 brevinota, D. terrestris, Trigonaspis obconica, T. fumosa, Biorhiza 

 ocala, Xystoteras contorta, Callirhytis hartmani, C. corallosa, C. 

 maxima, C. enigma, C. ovata, C. rubida, C. marginata, C. fulva, 

 C. ellipsoida, C. elliptica, Bassettia tenuana, Compsodryoxemus 

 illinoisensis, C. tenuis', C.humilis, Belonocnemafossoria, B. kinseyi. 



Notes on certain genera of parasitic Cynipidae pro- 

 posed by Ashmead with descriptions of genotypes. No. 



2378. August 18, 1921 l 433-451 



Wilson, Charles Branch. New species and a new genus 



of parasitic copepods. No. 2354. June 10, 1921 1 1-17 



New genus: Blakeanus. 



New species: Alebion fuscus, Elytrophora hemiptera, Trebius lati- 

 furcatus, Blakeanus corniger, Pseudomolgus haivaiiensis, Modiolicola 

 jamaicensis. 



The North American semiparasitic copepods of the 



genus Clausidium. No. 2377. August 11, 1921 J 425-431 



New species: Clausidium dissiinile. 

 Wolcott, A. B. North American predaceous beetles of 

 the tribe Tillini in the United States National Museum. 



No. 2370. June 24, 1921 * 269-290 



New species: Callotillus va/er, Cymatodera aegra, C. mitis, C. 

 schwarzi, C. mystica, C. knausi, C. longula, C. rudis, C. confusa. 

 New variety: Cymatodera sirpata, var. spatiosa. 



> Date of publication. 



