482 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



Most of the stations are in the shallow, warm waters about the 

 islands of the Siilu Sea. 



Peneroplis planatus — Material examined. 



locality. 



Island off Panabutan 

 Point N. 52° E., 1.50 

 miles. 



6 06 00 N. 

 5 22 55 N. 

 5 12 40 N. 

 5 10 15 N. 

 5 01 40 N. 



12 43 00 N. 

 11 09 15 N. 

 U 31 40 N. 



13 11 15 N. 



121 02 30 E... 

 120 15 45 E... 

 119 55 10 E... 

 119 53 00 E... 

 119 52 20 E... 



122 06 15 E... 



123 50 00 E... 



124 42 40 E.. 

 123 02 45 E.. 



Binang Pool, Subin Bay, 



P.I. 

 Tacloban Anchorage, P. I . 



Depth 



in 

 fath- 

 oms. 



38 



Bot- 

 tom 

 tem- 

 pera- 

 ture. 



Character of 

 bottom. 



CO. s . . 

 wh. s.. 

 s 



fne. s.. 

 gn. m. 

 fne. s.. 

 gn. s.. 

 gn. m. 

 crs. s . . 



Abundance. 



Common. 



Few. 



Few. 



Few. 



Few. 



Few. 



Few. 



Few. 



Few. 



Common. 



Few. 



Common. 



PENEROPLIS CARINATUS d'Orbigny. 



Peneroplis carinatus d'Orbigny, Foram. Amer. M^rid., 1839, " Foraminif feres," p. 



33, pi. 3, figs. 7, 8.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 



p. 205, pi. 13, fig. 14. — Heron- Allen and Earland, Trans. Zool. Soc. London, 



vol. 20, 1915, p. 602. 

 Peneroplis pertusus, var. carinatus Cushman, Bull. 71, U. S. Nat. Mus., pt. 6, 1917, 



p. 87, pi. 37, fig. 4. 



This species is common at D5159, off Tav/i Tav/i, in 10 fathoms 



(18 meters). 



Peneroplis carinatus— Material examined. 



PENEROPLIS ARIETINUS (Batsch). 



Nautilus (Lituus) arietinus (part) Batsch, Conch, dea Seesandes, 1791, p. 4, pi. 6, 

 fig. 15c. 



Peneroplis arietinus Parker, Jones, and H. B. Brady, Ann. Mag. Nat. Hist., 

 ser. 3, vol. 16, 1865, p. 26, pi. 1, fig. 18.— II. B. Brady, Rep. Voy. Challenger, 

 Zoology, vol. 9, 1884, p. 204, pi. 13, figs. 18, 19, 22.— Heron-Allen and Ear- 

 land, Trans. Zool. Soc. London, vol. 20, 1915, p. 602. 



Peneroplis pertusus, var. arietinus Cushm.\n, Bull. 71, U. S. Nat. Mus., pt. 6, 

 1917, p. 88, pi. 36, fig. 2; pi. 37, fig. 5. 



The elongate form is common at som.e stations, the depths at 

 which it was recorded being between 10 and 20 fathoms (18 and 37 

 meters), mostly among the islands in the Sulii region. 



