370 DISCOVERY REPORTS 



197. Lagena squamosa (Montagu). 



Vermiculum squamosum, Montagu, 1803-8, TB, p. 526, pi. xiv, fig. 2. 

 Lagena squamosa, Brady, 1884, FC, p. 471, pi. Iviii, figs. 28-31. 



Seventeen stations: 48, 51, 388; WS 78, 80, 83, 86, 87, 88, 89, 92, 93, 99, 217, 221, 245, 248. 



Never very abundant and, as might be expected, the species often varies in the 

 direction of L. melo, one of d'Orbigny's local species. At different stations there is often 

 a great difference in the size of the markings. At 51 they are all very coarse, at WS 89 

 all very small, but at WS 80 there is a complete range between coarsely and finely 

 marked specimens. The best and most typical at WS 86 and 93. 



198. Lagena squamosa var. montagui (Alcock). 



Entosoleiiia montagui, Alcock, 1865, NHC, p. 196. 



Lagena squamosa var. montagui, Heron-Allen and Earland, 1913, CI, p. 76, pi. vii, fig. 13. 



Two stations : WS 92, 245. 



A single specimen at each. That from WS 245 has the depressions arranged spirally 

 round the shell. 



199. Lagena reticulata (Macgillivray) . 



Lagenula reticulata, Macgillivray, 1843, HMAA, p. 38. 



Lagena reticulata, Reuss, 1862, FFL, p. 333, pi. v, figs. 67, 68; 1863, FCA, p. 144, pi. i, fig. 16. 



One station: WS 225. 



Represented by a single specimen. 



200. Lagena melo (d'Orbigny) (Plate X, figs. 25-27). 



Oolina melo, d'Orbigny, 1839, FAM, p. 20, pi. v, fig. 9. 



Entosolenia squamosa var. catenulata, Williamson, 1848, BSGL, p. 19, pi. ii, fig. 20; 1858, 



RFGB, p. 13, pi. i,fig. 31. 



Lagena melo, Brady, Parker and Jones, 1888, AB, p. 222, pi. xliv, fig. 21 (only). 



Fifteen stations: 48, 388; WS 71, 73, 83, 89, 90, 91, 97, 99, 210, 221, 225, 245, 248. 



This is one of d'Orbigny's species from the Falklands, and although there is a good 

 deal of variation in the shape of the specimens and in the number of the "rows of 

 dimples" (fossettes eti ligne) which he describes, yet at many stations perfectly typical 

 examples can be found, notably at WS 73, 90 and 97. The specimens have been com- 

 pared with the Types in Paris and are identical. Size very variable, up to 0-25 mm. long, 

 0-20 mm. broad. 



201. Lagena catenulata, Reuss. 



(Not Entosolenia squamosa var. catenulata, Williamson, 1848, BSGL, p. 19, pi. ii, fig. 20.) 



Lagena catenulata, Reuss, 1862, FFL, p. 332, pi. vi, fig. 75 (only). 



Lagena catenulata, Heron-Allen and Earland, 1922, TN, p. 152, pi. v, figs. 16-18. 



Three stations: WS 93, 248, 433. 



Very rare but good specimens. Although Reuss 's figure purports to represent L. cate- 

 nulata. Will., it is in our opinion quite a distinct form, and as such we have separated it. 



