18 BULLETIN 161, UNITED STATES NATIONAL MUSEUM 



Serpula (part) Linnaeus, Systema naturae, ed. 10, p. 7S6, 1758. 



Adelosina d'Orbigny, Ann. Sci. Nat., vol. 7, p. 303, 1826 (genotype, by designa- 

 tion, A. striata d'Orbigny). 



Uniloculina d'Okbigny, Foram. Foss. Bass. Tert. Vienne, p. 261, 1846 (genoholo- 

 type, V. indica d'Orbigny). 



Miliolina (part) Williamson, Rec. Foram. Great Britain, p. 83, 1858 (and 

 later authors). 



Genotype. — By designation, Serpula seminulum Linnaeus. 



Test with the coiling in five planes, the chambers half a coil in 

 length and added successfully in planes 144° apart, five chambers 

 completing a cycle, each chamber 72° from its adjacent one but 144° 

 from the immediately preceding one; wall imperforate, calcareous, 

 often with arenaceous material on the exterior and in deep or brack- 

 ish water occasionally becoming siliceous; aperture usually with a 

 simple tooth. 



This is one of the common genera in the shallow water of the South 

 Pacific represented by numerous species. In addition to those recorded 

 here, there are probably several others in our material, but they are 

 represented by either incomplete or insufficient specimens so that 

 specific determination of them is not possible. Some of the species 

 show considerable variation in shape of the chambers and the orna- 

 mentation from the young stages to the adult, and it is necessary to 

 have rather full suites of specimens in order really to understand 

 the complete developmental stages and the adult as well. In order to 

 facilitate use of the species of the genus they are here arranged 

 alphabetically. 



QUINQUELOCULINA ANGUINA Terquem var. AGGLUTINANS (Wiesner) 



Plate 5, Figures 1 a-c 



Miliolina anguina (Tebquem) var. agglutinins Wiesnek, in Heron-Allen and Ear- 

 land, Trans. Zool. Soc. London, vol. 20, pt. 2, p. 575, 1915. — Cushman, Car- 

 negie Inst. Washington Publ. 342, p. 60, pi. 22, figs. 5, 6, 1924. 



Test elongate, two or three times as long as broad, periphery 

 rounded; chambers distinct, rounded in transverse section, the aper- 

 tural end extended; sutures somewhat depressed; wall with the sur- 

 face coarsely arenaceous and roughly finished; aperture with a 

 cylindrical neck, and slight lip. Length, 0.5 mm. ; breadth, 0.3 mm. ; 

 thickness, 0.2 mm. 



This has proved to be a common form, well developed in our 

 material. Previous records for the Pacific are from the Kerimba 

 Archipelago off southeast Africa (Heron- Allen and Earland) and 

 from Samoa (Cushman). 



Specimens occurred in considerable numbers at the following lo- 

 calities: Mokaujar Anchorage, Fiji Islands; Levuka, Fiji, 12 

 fathoms; off Nairai, Fiji, 12 fathoms; Vavau Anchorage, Tonga 



