![](https://brightspotcdn.byu.edu/47/02/cc58033b4a8eb5e3a4a12a3b072f/p-r-riggenbachi-male-10x-ov.jpg)
Media_Files/P_r_riggenbachi_male_10x_ov.jpg
![](https://brightspotcdn.byu.edu/fe/c9/3327c9964c6f93e0f94f594b51c8/p-r-riggenbachifemale10xhead.jpg)
Media_Files/P_r_riggenbachiFemale10xhead.jpg
![](https://brightspotcdn.byu.edu/5f/33/ec443d9647208d00a81382c11c4c/p-r-riggenbachifemaleov10x.jpg)
Media_Files/P_r_riggenbachiFemaleOV10x.jpg
![](https://brightspotcdn.byu.edu/19/89/c4942aa3422fa7a7fc327bceef28/p-r-riggenbachi-head-male-20x.jpg)
Media_Files/P_r_riggenbachi_head_male_20x.jpg
![](https://brightspotcdn.byu.edu/e8/9a/185fdadf4064b6e137c215066c16/p-r-riggenbachi-sp-20x.jpg)
Media_Files/P_r_riggenbachi_sp_20x.jpg
![](https://brightspotcdn.byu.edu/f2/8e/0df7030e44359c4391c306085d49/p-r-riggenbachi-male-term-20x.jpg)
Media_Files/P_r_riggenbachi_male_term_20x.jpg
![](https://brightspotcdn.byu.edu/33/55/5d83522c43beb612670bff17c7d3/p-r-riggenbachifemale20xhead2.jpg)
Media_Files/P_r_riggenbachiFemale20xhead2.jpg