from Neiv Zealand. 303 



Locality. — Selvvyn Rapids', where it is rather common. 



I name this species after Professor P. Marshall, who has done so 

 much in elucidating the geology of New Zealand and in calling 

 attention to the problems of the Cretaceo-Tertiary question in the 

 South Pacific region. 



Pugnellus Waiparensis, sp. no v. (PI. XX, Figs, la, b.) 



The spire is moderately elevated and the shell consists of six whorls. 

 The shell is almost completely overgrown up to the summit of the 

 spire with a platy extension of the lip, and only when this is broken 

 away is the spire visible and the nodes and ornamentation of the 

 whorls seen. The earlier whorls are decorated with folds which develop 

 into elevated and rather sharp nodes. These are placed in a diagonal 

 position on the shell rather above the suture on the penultimate 

 whorl, and are faintly visible on the body-whorl where they occur 

 above the median line. Below these nodes on the last whorl there is 

 a blunt faintly raised ridge. 



A series of fine, rather wavy, spiral, raised lines occur on the 

 penultimate whorl and are faintly seen on the body-whorl below the 

 ridge. They run somewhat irregularly and are not exactly parallel 

 to one another, but approach and recede again, a peculiarity already 

 noticed by Wilckens in the case of Pugnellus Hauthali, 1 which he 

 describes from South Patagonia. The anterior channel of the lip is 

 not produced, and the outer margin of the lip is not swollen to an 

 unusual extent for a Pugnellus. 



This shell approaches P. Hauthali in having the spire completely 

 covered with a leafy shell growth and in the diagonal arrangement 

 of the elongated and sharp nodes and in the curious non-parallel 

 arrangement of the spiral lines. It differs in the spire being more 

 elevated and the anterior channel not being elongated and the outer 

 lip being less swollen and extended. 



Locality. — Waipara Gorge, in beds with Ostrea near the local 

 base of the Cretaceous and well below the Saurian concretionary 

 beds. It occurs plentifully, but often rolled and poorly preserved. 

 It has hitherto been mistaken for Conchothyra parasitica, and 

 I thought it was a small variety of that shell, but I find on 

 developing my specimens that it is a Pugnellus that I cannot identify 

 with any described form. I found no Conchothyra in the bed in 

 which it occurs. 



Pugnellus australis, Marshall; variety. (PI. XX, Pigs. 2a, b.) 



Trans. N.Z. Inst., vol. xlviii, p. 120, pi. xi, figs. 1-3, 1915. 

 Professor Marshall has recently described a highly decorated shell 

 which occurs rather commonly at Wangaloa. When I visited that 

 locality in his company I collected several examples of the shell, two 

 of which, when developed, prove to be excellently preserved. One of 

 them closely resembles his type-specimen, Pig. 2, but the other 

 differs in having a much more exaggerated development of the 

 lip than any of his three figured examples and is apparently an aged 

 specimen. 



1 Berichte der Naturf . Gesell. z. Freiburg, Bd. xv, p. 18, pi. iv, figs. 2a, b, 1907. 



