NO. 5 FORAMINIFERAL GENERA — LOEBLICH AND TAPPAN 2/ 



form of vertical pillars ending in pustules as in Trocholina, but con- 

 sists of horizontally laminated structure. It also shows superficial 

 resemblance to Howcliinia Cusliman, 1927, in the nonseptate tube 

 coiled in a high spire about a calcite-filled center; however, Howcliinia 

 shows extensions of shell matter crossing the spiral suture, leaving a 

 series of pores between, which extend into the interior. Furthermore, 

 there is less of an open spiraling in Howchinia and its wall structure 

 is of minutely granular calcite, not formed of a single crystal as in the 

 present form, as was shown by Wood (1949, p. 245). 



We have named this genus in honor of Prof. Alan Wood of Aber- 

 ysthwyth, Wales, in recognition of his excellent work on the wall 

 structures of Foraminifera, which has supplied an additional useful 

 tool for the systematics of the Foraminifera. 



Family CARTERINIDAE Loeblich and Tappan, new family 



Test free or attached, chambers arranged in a trochoid coil, all 

 visible from the dorsal side and only those of the last whorl on the 

 ventral side, and may have subdivisions of the chambers due to sec- 

 ondary septa; wall composed of secreted calcareous spicules embedded 

 in a calcareous ground mass; aperture in free forms ventral in position, 

 in attached forms not observed. 



Discussion. — This family is erected to include the genus Carferina 

 because of the unique wall character. This is the only form as yet 

 known to have a test composed of calcareous spicules secreted by the 

 animal itself. 



Genus CARTERINA Brady, 1884, emended 



Plate 4 figures 9, 10 



Original description. — Rep. voyage Challenger, vol. 9 (Zoology), 

 pt. 22, pp. 66, 345, 1884. 



Type species. — Rotalia spiculotesta Carter, 1877. Original designa- 

 tion. 



Diagnosis. — Test free, trochoid and ventrally umbilicate in the early 

 stages, attached and spreading irregularly in the later stages; chambers 

 arranged in a trochoid coil, with five per whorl in the young, with the 

 crescentic chambers of approximately equal height throughout, becom- 

 ing much more irregular and longer in later whorls, chambers fewer 

 in later whorls, only three to four, and these appear extremely low 

 and long, and in a very irregular spiral ; in the later stages the test is 

 surrounded by a wide flangelike and undivided portion, which spreads 

 over the surface of the substratum ; sutures distinct, thickened, oblique 



