TAXONOMY AND DISTRIBUTION 



131 



The wall is exceedingly thin and is always hyaline. 



The elongated animal has short membranelles, and there 

 are 2 round (0.3 oral diameter) macronuclei located in the 

 aboral part. 



Length, 345^1. 



Kot'oid and Campbell (1929) figure a lorica 13.8 oral 

 diameters in length, with a low, flaring funnel and short 

 fins, from the warm Mexican Current. ScilptngcUa stcata is 

 usually a cold-water form, and as the Carnegie specimens 

 and Brandt's are stouter, they must have come from cooler 

 waters. The differences between the Carnegie loricae and 

 Kofoid and Campbell's are so great that the latter may be 

 something other than secata. 



Salpingella secata differs from S. acuminata in having a 

 distinct aboral cylinder, above which the ridgelike fins arise; 

 from the simple end of acuminata, fins arise directly. 



Recorded from one station (6) in the Atlantic drift, in a 

 net sample taken at 100 meters. Frequency, minimum. 



Temperature, ii?28; salinity, 35.52; density, 27.15; pH, 

 8.08. 



Salpingella subconica Kofoid and Campbell 



Salpingflla sitbcoiiica Kufoid and Campbell, 1929, p. 355, fig. 

 676; Marshall, 1934, p. 660, fig. 43. 



The stout, bradlike lorica, with steep suboral funnel and 

 short fins, has a length of 7.0 oral diameters. The oral rim 

 is thin, and the collar is a rather low funnel (38°), with a 

 length of only 0.5 oral diameter, and a diameter of 0.75 oral 

 diameter at its lower end. The shaft is a cylinder for 4.5 

 oral diameters, and is convex conical (17°) for the remain- 

 ing part. The fins, 8 in number, have a length of 0.4 total 

 length, and are decurrent blades. The open aboral end is 

 tiny. 



The wall is thin and clear. 



Length, 97 to 220^1. 



There is considerable variation in actual length and also 

 in proportions. 



Salpingella subconica differs from S. curta in size and 

 proportions, in longer fins, and in shorter funnel. It lacks 

 the expanded aboral end of S. rotundata, has much less of a 

 suboral flare than S. minutissima, and is of different type 

 from 5. decurtata. It lacks the facets of 5'. crcnidata. 



Recorded from fourteen stations, four in the Atlantic and 

 ten in the Pacific, as follows: one (20) in the Sargasso Sea, 

 two (22, 23) in the Atlantic equatorial region, one (33) in 

 the Caribbean Sea, six (43, 45, 46, 68, 73, 78) in the Gala- 

 pagos region, three (63, 65, 67) in the South Pacific middle 

 latitudes, and one (144) in the North Pacific middle lati- 

 tudes. 



There are 10 pump and 9 net samples, of which 3 were 

 taken at the surface, 9 at 50 meters, and 7 at 100 meters. 

 Maximum frequency, 6 per cent at station 45 at 50 meters; 

 other records above minimum (2 to 3 per cent) from stations 

 65, 68, 78; average in Pacific pump and net samples, 1.8 

 loricae and 2.0 per cent, respectively. 



Temperature: Atlantic, pump sample 28?25, net samples 

 i7?50-23?i7 (2i?09); Pacific, i5?84-24?38 (2o?54) and 

 i5?03-23?26 (i8?72), respectively. Salinity: Adantic, pump 



sample 36.19, net samples 36.04-36.60 (36.37); Pacific, 34.58- 

 36.17 (35.29) and 34.30-35.33 (34.88), respectively. Den- 

 sity: Atlantic, pump sample 23.23, net samples 24.34-25.30 

 (24.89); Pacific, 24.11-25.60 (24.80) and 24.13-25.52 (24.97), 

 respectively. pH: Atlantic, pump sample 8.24, net samples 

 8.14-8.26 (8.19); Pacific, 7.93-8.33 (8.23) and 8.0^8.16 

 (8.12), respectively. 



SALPINGELLOIDES, new genus 



Salpingella Kofoid and Campbell (part), 1929, pp. 349, 35T, 

 354- 



The lorica is elongated and trumpet-shaped, with circular 

 cross section, lacking facets or ridges, always open aborally, 

 and with vertical ridges or fins extending to, or nearly to, the 

 oral end from the posterior part. 



Salpingelloides differs from Salpingella in having the fins 

 extending the whole length of the lorica. It differs from 

 Daturella in having a firm rather than flaccid wall. It is 

 aborally contracted unlike Eutintinnus, and has no oral teeth 

 as in Salpingacantha. There is no suboral necklace as in 

 Epicranella, nor are there facets as in Rhabdosella and in 

 Epirhabdosella, those in the last-mentioned genus extending 

 only part-way down the tube, whereas in the former they 

 are extended the whole length. 



The type species is Salpingelloides costata (Laackmann) 

 from the Antarctic. Two other species are included in the 

 genus, namely, S. altiplicata and S. regulata. None of these 

 is found in the material of this expedition, although 5. 

 regulata is tropical Atlantic and S. altiplicata is northern; 

 thus, the genus as a whole is widely spread in many waters. 



EPIRHABDOSELLA, new genus 



Salpingella (Rhabdosella) Kofoid and Campbell (part), 1929, 

 P- 347- 



The lorica is elongated and trumpet-shaped; it is faceted 

 in the upper section but not in the lower part, otherwise as 

 in Salpingella. 



Epirhabdosella differs from Rhabdosella in the limitation 

 of the region of the facets: in the latter, they extend the 

 whole length of the lorica and the cross section is octagonal. 

 It differs from Salpingelloides in that there is a limited 

 region with fins. There is no suboral necklace as in Epi- 

 cranella. 



The type and only species is Epirhabdosella cuneolata 

 (Kofoid and Campbell) from the eastern tropical Pacific. 

 This species was found seven times in the material of this 

 expedition. 



Epirhabdosella cuneolata (Kofoid and Campbell) 



Salpingella (Rhabdosella) cuneolata Kofoid and Campbell, 

 1929, p. 347, fig. 667. 



The slender, trumpet-shaped lorica, with 18 facets, has a 

 length of 6.2 oral diameters. The oral margin is bounded 

 by 18 equal planes formed by the upper margins of the 

 adjacent suboral facets. These facets extend from within 



