78 ANNALS NEW YORK ACADEMY OF SCIENCES 



possession of two pairs of book-lungs. There are but three species ac- 

 cording to Conistock, one in the mountains of Tennessee, one in China 

 and one in Tasmania. 



Uloborid^ 



Like the Argiopidse, the members of this family spin orb webs but the 

 webs contain a hackled band not found in those of the Argiopids. The 

 spiders themselves differ in important anatomical characters. Three of 

 the five American genera occur in the Greater Antilles. 



DINOPIN^ 



Dinopis is found in Africa, Madagascar, Australia and certain of the 

 Pacific Islands. Of the eleven American species, two are recorded only 

 from Mexico and Central America: seven from South America; and one, 

 spinosa, from southeastern United States, Venezuela and St. Vincent. 

 D. lamia MacLeay is recorded from fCuba. The only definite localities 

 given in this island are Santiago de las Vegas (sweeping grassland) and 

 Cayamas. We took it on the steep rocky coast of Desecheo by beating 

 low shrubs. Dinopis belongs to a subfamily of which the only other 

 genus is found in Africa, Australia and Xew Caledonia. It is evidently 

 an old group. 



ULOBORIN^ 



Uloborus is cosmopolitan and U. geniculatus (Olivier) is known from 

 Australia, Malay Archipelago, Bourbon, Bermuda and the American 

 tropics and subtropics. This species is recorded from several of the 

 Lesser Antilles but the only definite records which have come to my 

 attention from the Greater Antilles are the following by Banks : the 

 laboratory at Santiago de las A^egas, Cuba; near Port au Prince, Haiti; 

 and Lares, Porto Eico. It is surprising that we have not taken it in 

 the Greater Antilles. It is usually found about houses and its webs are 

 frequently conspicuous by reason of star-like egg-sacs fastened to them. 

 U. americaniis Walckenser is widely distributed in the western hemisphere 

 but is more northern in its distribution than geniculatus. We have it 

 from Labrador and it is laiown throughout the United States and south 

 to Costa Pica : also in the Bahamas. The only definite Antillean record 

 I have seen is that by Banks, under the name of plumipes, from Cayamas, 

 Cuba. U. republicanus Simon is known from f Venezuela and Cuba. We 

 took it at the edge of a mangrove swamp near Cabanas, Cuba, and ob- 

 served the same habit noted by Mr. Schwartz (1904) at Cayamas, Cuba. 

 He says : "Each spider has an individual web, but all are placed in a 

 great communal web, one of which was 7 to 9 feet wide, 5 to 7 feet high, 



