760 EEPORT— 1887. 



approaches Fungia. In this and some other genera may be detected laminated 

 offsets of mesogloea into the coral, for hrmer attachment of the mesentery, 

 such structures having been erroneously described by Mr. W. L. Sclater in 

 Stephanoi ruckus, and probably by Dr. von Heider in Deadroplnjllia, as calicoblasts. 



8. The Bole of the Heart in Vertebrate Morphology. By Dr. C. S. Minot. 



9. On the Structure of the Human Blacenta. By Dr. C. S. Minot. 



10. A Neiu Species (f Vircjularia. By Major Plant. 



11. On some Bare and Bemarkable Marine Forms at St. Andrews Marine 

 Laboratory. By Professor McIntosh. 



12. On the Development of the Ovary and Oviduct in certain Osseous Fishes. 

 By Edwakd E. Peixce. 



13. On the Luminous Larviform Females in. the Fhenyodini. 

 By Professor C. V. Riley. 



Certain interesting phosphorescent coleopterous larvre reaching 2i to 3 inches 

 in length have been well known to occur in America ever since Baron Osten 

 Sacken first minutely described tliem in 18G2, and discussed their affinities between 

 the Elateridae, LampyridiB, and Telephoridie. The author gave a minute descrip- 

 tion of these larvae, calling attention particularly to the horizontal head, protrud- 

 ing labium, falciform, giooved, and untoothed mandibles inserted on the sides of the 

 head, certain ventral conchoid depressions, minute dorsal stigma-like glands open- 

 ing by a crescent slit between the joints, and the lateral spiracles. 



The great interest attaching to these larvoe is not so much in their luminosity as 

 in the fact that a portion of them are now known to be true and perfect females 

 of Phengodini, which have, until recently, been represented in coleopterological col- 

 lections in the male sex ouh\ The history of this discovery furnishes another 

 instance of simultaneous and independent observations on the same point in 

 different parts of the world. In 1883, in conjunction with one of his assistants, 

 Mr. E. A. Schwarz, he had arrived at this conclusion in Washington, with the 

 intention of some time publishing the facts upon which it was based, when the 

 same conclusion was being verified by Dr. Ilieronymus, of Cordova, and the 

 announcement anticipated by liim and by Dr. Ilaase in 1885. 



The author has been accumulating material since 1869 with notes, and has 

 critically examined in all some thirty difi'erent lots in his own collection at the 

 National Museum and in the collections at Philadelphia, Boston, and Cambridge. 

 These all belong to Fhenyodex and Zarhiim, with the exception perhaps of Osten 

 Sacken's No. '2, which may be SpatJiizus. Thedifierences between the larva proper 

 and the adult female are so sliglit that it would be difficult to separate them with- 

 out some absolute index. The author had been fortunate in obtaining undoubted 

 females, coupled with their males, of Vhemiode.s laticollis and Zarhipis riversii, and 

 in both genera there were absolutely no other structural diflierences between larva 

 and adult female than the somewhat shorter (relatively) mandibles and tarsal claw 

 in the adult. 



In reference to life-historj% the food of Zarhipis is known to be myriapods. The 

 eggs in both genera are spherical, translucent, and laid in masses in the ground ; 

 the n^wly hatched larva in both are structurally identical with the parent, and 

 the female larva goes through a pseudo-pupal state prior to the final molt. No- 

 thing is yet known of the male larva and pupa, and the author only conjectures 

 that certain darker, more slender larvae, structurally identical, belong to this sex. 



